NEW YORK — There were still the tearful messages to loved ones, clutches of photos and flowers, and moments of silence. But 11 years after Sept. 11, Americans appeared to enter a new, scaled-back chapter of collective mourning for the worst terror attack in U.S history.

Crowds gathered, as always, at the World Trade Center site in New York, the Pentagon and a Pennsylvania memorial Tuesday to mourn the nearly 3,000 victims of the 2001 terror attacks, reciting their names and remembering with music, tolling bells and prayer. But they came in fewer numbers, ceremonies were less elaborate and some cities canceled their remembrances altogether. A year after the milestone 10th anniversary, some said the memorials may have reached an emotional turning point.

"It's human nature, so people move on," said Wanda Ortiz, of New York City, whose husband, Emilio Ortiz, was killed in the trade center's north tower, leaving behind her and their 5-month-old twin daughters. "My concern now is ... how I keep the memory of my husband alive."

It was also a year when politicians largely took a back seat to grieving families; no elected officials spoke at all at New York's 3 1/2 -hour ceremony. President Barack Obama and Republican Mitt Romney pulled negative campaign ads and avoided rallies, with the president laying a wreath at the Pentagon ceremony and visiting wounded soldiers at a Maryland hospital. And beyond the victims of the 2001 attacks, attention was paid to the wars that followed in Iraq and Afghanistan.

In Middletown, N.J., a bedroom community that lost 37 residents in the attacks, town officials laid a wreath at the entrance to the park in a small, silent ceremony. Last year, 3,700 people attended a remembrance with speeches, music and names read.

"This year," said Deputy Mayor Stephen Massell, "I think less is more."

Some worried that moving on would mean Sept. 11 will fade from memory.

"It's been 11 years already," said Michael Reneo, whose sister-in-law, Daniela Notaro, was killed at the trade center. "And unfortunately for some, the reality of this day seems to be fading as the years go by. ... I hope we never lose focus on what really happened here."

Thousands had attended the ceremony in New York in previous years, including last year's milestone 10th anniversary. In New York, a crowd of fewer than 200 swelled to about 1,000 by late Tuesday morning, as family members laid roses and made paper rubbings of their loved ones' names etched onto the Sept. 11 memorial. A few hundred attended ceremonies at the Pentagon and in Shanksville, Pa., fewer than in years past.

As bagpipes played at the year-old Sept. 11 memorial in New York, families holding balloons, flowers and photos of their loved ones bowed their heads in silence at 8:46 a.m., the moment that the first hijacked jetliner crashed into the trade center's north tower. Bells tolled to mark the moments that planes crashed into the second tower, the Pentagon and a Pennsylvania field, and the moments that each tower collapsed.

President Obama and first lady Michelle Obama laid a white floral wreath at the Pentagon, above a concrete slab that said "Sept. 11, 2001 – 937 am." Obama later recalled the horror of the attacks, declaring, "Our country is safer and our people are resilient."

Vice President Joe Biden remembered the 40 victims of the plane that crashed in a field south of Pittsburgh, saying he understood 11 years haven't diminished memories.

"Today is just as monumental a day for all of you, for each of your families, as any Sept. 11 has ever been," he said.

Wearing white ribbons, many wearing T-shirts with their loved ones' pictures, victims' family in New York read loved ones' names, and looked up to the sky to talk to their family – even those they hadn't met.

Juan Torres wasn't old enough to remember his uncle, Luis, "but after all the stories I heard, I knew he was a good man. Although he threw himself from the building, I know God was waiting for him below and caught him in his arms."

Like 2001, this Sept. 11 was on a Tuesday, for the second time since the attacks. The cloudless blue sky and brisk, early fall weather recalled the morning of 2001.

At sunset, the Manhattan skyline was illuminated by twin towers of light, the annual Tribute in Light installation, which debuted six months after the attacks and has become a Sept. 11 tradition.

Other ceremonies were held across the country – from Long Island, where hundreds of people wrote messages to their loved ones on a memorial, to Boston, where more than 200 people with ties to Massachusetts were remembered. Two of the hijacked airliners took off from Boston's Logan Airport.

But other cities changed the way they remembered. The New York City suburb of Glen Rock, N.J., where 11 victims lived, did not hold an organized memorial for the first time in a decade. Past commemorations often ran for several hours, with family laying roses in front of a granite memorial built with remnants of the twin towers' steel.

"It was appropriate for this year – not that the losses will ever be forgotten," said Brad Jordan, chairman of a Glen Rock community group that helps victims' families. "But we felt it was right to shift the balance a bit from the observance of loss to a commemoration of how the community came together to heal."

Several people attending the ceremonies were related to soldiers who fought in the wars in Afghanistan and Iraq that followed 9/11, where the U.S. military death toll years ago surpassed the 9/11 victim count. Elna Tullock, whose son, Hassan Carter, is completing his second tour in Afghanistan and served another two in Iraq, admired the rising One World Trade Center tower.

"This is all connected," she said, pointing to a picture of her son and the tower before her.

Allied military forces marked the anniversary at a short ceremony at NATO's headquarters in Kabul, Afghanistan with a tribute to more than 3,000 foreign troops killed in the decade-long war. "Eleven years on from that day there should be no doubt that our dedication to this commitment, that commitment that was seared into our souls that day so long ago, remains strong and unshaken," said Marine Gen. John Allen, the top commander of U.S. and coalition troops.

At least 1,987 U.S. troops have died in Afghanistan and 4,475 in Iraq, according to the Pentagon.

In Norfolk, Va., about 1,100 sailors and Marines aboard the USS New York, a warship forged with 7.5 tons of steel salvaged from the trade center, listened to "Proud to be an American" and observed moments of silence for the moments the airliners hit their targets and read the death toll out loud.

"We often tell people, it's not just about that one day," said Capt. John Kreitz, the USS New York's commanding officer. "The spirit here is really about what happened the next day and the next day and every day since."

___

Associated Press writers Verena Dobnik and Alex Katz in New York, Wayne Parry in Atlantic City, N.J., Katie Zezima in Middletown, N.J., Steven R. Hurst in Washington, Joe Mandak in Shanksville, Pa., Brock Vergakis in Norfolk, Va., and Amir Shah in Kabul, Afghanistan, contributed to this report.

___

Follow Jennifer Peltz at http://twitter.com/jennpeltz

Related on HuffPost:

live blog

Oldest Newest

From Andres Jauregui:

Sometimes the simplest memorials are the most moving.

Lawrence T. Stack, an FDNY commander in charge of a safety battalion that investigated on-duty deaths, died on Sept. 11, 2001 when the north tower of the World Trade Center collapsed.

lawrence stack fdny commander

For more, go here.

Share this:

From HuffPost World:

The U.S. war in Afghanistan has reduced the group's power base in Afghanistan, while affiliates in west Africa and Yemen have gained in strength. Al Qaeda forged alliances with the Somali militant group al Shabab, carrying out deadly attacks in London and Madrid.

Yet many of al Qaeda's leaders have been captured or killed. According to CNN's Peter Bergen, CIA drone strikes have killed 15 of the most important players in al Qaeda under president Obama, while 16 key al Qaeda operatives in Pakistan were killed during the George W. Bush presidency. The terrorist network lost its longtime leader Osama bin Laden in a U.S. raid on May 1, 2011, as well as its deputy Yahya al Libi in June 2012.

HuffPost takes a look at al Qaeda's leadership, 11 years after 9/11. Who's still in power? Find out here.

Share this:

From HuffPost World:

On Tuesday, communities around the world marked the 11th anniversary of the terrorist attacks on September 11, 2001, that took the lives of nearly 3,000 people.

september 11 anniversary world

Young Indian students hold candles as they offer prayers ahead of the 11th anniversary of the Sept. 11 terrorist attacks on the World Trade Center, in Amritsar, India, on Monday, Sept. 10, 2012. (AP Photo/Prabhjot Gill)

Share this:

september 11 young peoples chorus

Share this:
@ DailyIntel : Compiled for last year's tenth anniversary, the Encyclopedia of 9/11 remains a powerful remembrance: http://t.co/Tj4BOLka

Share this:

From HuffPost Politics:

"We wish we weren't here. We wish we didn't have to be here. We wish we didn't have to commemorate any of this," Biden told relatives and guests at the memorial for United Airlines Flight 93, the jet on which passengers fought hijackers for control amid the worst terrorist attack in U.S. history.

joe biden flight 193

Vice President Joe Biden, third from left, Interior Secretary Ken Salazar, second from left, and President of the Families of Flight 93, Patrick G. White, left, pauses after laying a wreath at The Wall of Names at the Flight 93 National Memorial in Shanksville, Pa., Tuesday, Sept. 11, 2012. (AP Photo/Gene J. Puskar)

Share this:
@ SenGillibrand : This AM, @ChuckSchumer & I attended memorial ceremony at Ground Zero to pay tribute to the innocent lives lost on 9/11 http://t.co/x2dGT5nv

911 memorial anniversary

Share this:
@ BuzzFeed : Chilling photo of NYC on 9/11 from space (via @NASA) http://t.co/TIpqn4ut

nasa september 11 manhattan

Share this:

september 11 anniversary

Two girls scratch names on paper as friends and relatives of the victims of the Sept. 11 terrorist attacks on the World Trade Center attend a ceremony marking the 11th anniversary of the attacks at the National September 11 Memorial at the World Trade Center site in New York, Tuesday, Sept. 11, 2012. (AP Photo/The Daily News, Todd Maisel, Pool)

Share this:

From HuffPost Comedy:

In the weeks that followed the September 11 terrorist attacks, late night hosts, comedy writers, and satirists of all stripes slowly returned to the business of making us laugh, while also sharing their grief, confusion and sense of loss.

From David Letterman's heartfelt opening monologue to The Onion's cathartic angry God, to Marc Maron simply going to work at a comedy club, these steps, large and small, helped Americans turn the corner.

For more, go here.

Share this:
@ MichelleObama : As we reflect on those we lost 11 years ago, let’s honor their memories by serving our communities. –mo

Share this:

From HuffPost Weddings:

Ben Salamone and Donna Teepe met in a 9/11 support group and fell in love after both of their spouses died when American Airlines Flight 77 hit the Pentagon, according to the Washington Post. Five years after the attacks, and four years after they began dating, Salamone asked Teepe to marry him on Christmas Eve.

For more love stories, go here.

Share this:

From HuffPost's Michael McAuliff:

WASHINGTON, D.C. -- It's been 11 years since terrorists destroyed the World Trade Center towers, and more than a year-and-a-half since President Barack Obama signed into law a bill meant to compensate responders and survivors sickened from exposure to the hazardous debris and toxins of Ground Zero.

But they're going to have to wait a while longer -- perhaps more than a year -- before most of them start to see any of the money authorized in the James Zadroga 9/11 Health and Compensation Act.

Share this:
@ HuffPostNY : Bloomberg, Cuomo end argument over 9/11 Museum http://t.co/n8CPLnyF

Share this:

For more, go here.

Share this:
@ FDNY : Lest we forget. The 9/11 Memorial Wall at the #FDNY Fire Academy. http://t.co/OvozEQIA

fdny 911 memorial

Share this:

911 anniversary 2012 obama

President Barack Obama and first lady Michelle Obama hold hands as they walk back to the White House in Washington, Tuesday, Sept. 11, 2012, after joining members of the White House staff during a moment of silence to mark the 11th anniversary of the Sept, 11th. (AP Photo/Carolyn Kaster)

Share this:
@ brigidbergin : Family members just paused the reading for the 6th and final moment of silence marking the moment when the North Tower fell #sept11 @wnyc

Share this:

From The New York Times:

Though they were not to speak, Gov. Andrew M. Cuomo of New York, Gov. Chris Christie of New Jersey, Mayor Michael R. Bloomberg and former Mayor Rudolph W. Giuliani created a small stir when they arrived shortly before the ceremony was to begin. They stopped together about 10 yards from the platform where 200 readers, reciting the names of the dead, were to stand at lecterns.

Angela Pesce, who wore her son Danny Pesce’s face and name on her T-shirt, said she approved of Mr. Bloomberg’s decision to exclude the politicians from the ceremony program.

Share this:

A generation of today's youth don't know an America pre-9/11. What does it mean to grow up in the era after the tragedy that forever changed the country?

Watch the discussion now on HuffPost Live.

Share this:
@ RickSantorum : America was changed forever on 9/11. Today let us honor the victims & those who continue to fight for our freedoms. We will never forget.

Share this:

september 11 anniversary 2012

An honor guard carries the World Trade Center flag near the South Pool of the 9/11 Memorial during ceremonies for the eleventh anniversary of the terrorist attacks on lower Manhattan at the World Trade Center site September 11, 2012 in New York City. (Photo by Craig Ruttle-Pool/Getty Images)

Share this:

From HuffPost Politics:

Re-watching footage from 9/11, regardless of the anniversary, is undoubtedly eerie, but for some, remembering that terrible day is often necessary in order to pay tribute to those who lost their lives.

For others, especially a generation growing up in the post-9/11 world, watching the footage helps form at least a partial understanding of the attacks.

Technology was able to preserve the memory of the events, for better or worse. Now, the clips that were once only considered a dramatic memory of a tragic day have become a part of history.

To see a collection of videos from September 11, 2001, go here.

Share this:

Mayor Michael Bloomberg on HuffPost Books:

One year after the terrorist attacks of September 11, 2001, our city faced a daunting challenge: hosting commemoration that was worthy of the memories of those who perished and that offered consolation to family members still mourning the loss of their loved ones. The world would be watching, as so many looked to New York City to remember and reflect on a day that brought unspeakable sadness but also unsurpassed heroics.

For more, go here.

Share this:

Pedestrians on the waterfront in Brooklyn, New York, look across the East River to the burning World Trade Center towers on Sept. 11, 2001.

september11eastriver

For more unforgettable 9/11 images, go here.

Share this:

This year, they won't be speaking.

911 anniversary 2012

Former New York Mayor Rudolph Giuliani, far left, New York Mayor Michael Bloomberg, fifth left, New York Governor Andrew Cuomo, fourth right, and New Jersey Governor Chris Christie, second right, attend as friends and relatives of the victims of the Sept. 11 terrorist attacks on the World Trade Center attend a ceremony marking the 11th anniversary of the attacks at the National September 11 Memorial at the World Trade Center site in New York, Tuesday, Sept. 11, 2012. (AP Photo/Jason DeCrow)

Share this:
@ StateDept : President Obama declares September 11 Patriot Day and National Day of Service and Remembrance: http://t.co/F8ODxdhe #911Day

Share this:

From HuffPost Politics:

The nation looks back at the September 11, 2001 attacks and remembers those who were lost 11 years after the nation was struck with tragedy.

While more than a decade has passed since 9/11, images from that day remain ingrained in the minds of Americans.

Go here for a timeline of key events from September 11, 2001.

Share this:

september 11 anniversary

Friends and relatives of the victims of the Sept. 11 terrorist attacks on the World Trade Center attend a ceremony marking the 11th anniversary of the attacks at the National September 11 Memorial at the World Trade Center site in New York, Tuesday, Sept. 11, 2012. (AP Photo/Mark Lennihan)

Share this:
@ FBIPressOffice : Remembering all of those lost on #9/11 including one of our own. Special Agent Leonard Hatton #911Day #lodd http://t.co/88K1R4YV

Share this:

Loading Slideshow...
  • U.S Senators Kirsten Gillibrand, and Charles Schumer, D-NY, place American flags in names engraved in the border of one of the World Trade Center Memorial reflecting pools, during the 11th anniversary observance, in New York, Tuesday Sept. 11, 2012. (AP Photo/Justin Lane, Pool)

  • A man embraces a woman as friends and relatives of the victims of the Sept. 11 terrorist attacks on the World Trade Center attend a ceremony marking the 11th anniversary of the attacks at the National September 11 Memorial at the World Trade Center site in New York, Tuesday, Sept. 11, 2012. (AP Photo/Jason DeCrow)

  • An American flag flies over a man pausing near a reflecting pool at the National September 11 Memorial during the observance of the 11th anniversary of September 11 in New York, on Tuesday, Sept. 11, 2012. (AP Photo/Todd Maisel, Pool, New York Daily News)

  • Friends and relatives of the victims of the Sept. 11 terrorist attacks on the World Trade Center attend a ceremony marking the 11th anniversary of the attacks at the National September 11 Memorial at the World Trade Center site in New York, Tuesday, Sept. 11, 2012.(AP Photo/Jason DeCrow)

  • A firefighter's hat rests on names of firefighters at the south reflecting pool who died in the attacks at the World Trade Center, during the 11th anniversary observance at the World Trade Center Memorial, in New York, Tuesday Sept. 11, 2012. (AP Photo/Justin Lane. Pool, EPA)

  • A woman holds a young boy as friends and relatives of the victims of the Sept. 11 terrorist attacks on the World Trade Center attend a ceremony marking the 11th anniversary of the attacks at the National September 11 Memorial at the World Trade Center site in New York, Tuesday, Sept. 11, 2012. (AP Photo/Jason DeCrow)

  • A woman becomes emotional while holding a photo of her father after reading his name as friends and relatives of the victims of the Sept. 11 terrorist attacks on the World Trade Center attend a ceremony marking the 11th anniversary of the attacks at the National September 11 Memorial at the World Trade Center site in New York, Tuesday, Sept. 11, 2012. (AP Photo/Jason DeCrow)

  • A boy observes a moment of silence as friends and relatives of the victims of the Sept. 11 terrorist attacks on the World Trade Center attend a ceremony marking the 11th anniversary of the attacks at the National September 11 Memorial at the World Trade Center site in New York, Tuesday, Sept. 11, 2012. (AP Photo/Jason DeCrow)

  • New Jersey Governor Chris Christie, left, places a flag on a memorial site as friends and relatives of the victims of the Sept. 11 terrorist attacks on the World Trade Center attend a ceremony marking the 11th anniversary of the attacks at the National September 11 Memorial at the World Trade Center site in New York, Tuesday, Sept. 11, 2012. (AP Photo/The Daily News, Todd Maisel, Pool)

  • Amelia Tedesco of Staten Island, N.Y. touches the name of her son-in-law Walter Baran of Staten Island, N.Y. during observances held on the eleventh anniversary of the attacks on the World Trade Center, at the site in New York, September 11, 2012. Baran was killed on the 90th floor of the south tower during the attacks. (AP Photo/Craig Ruttle, Pool, Newsday)

  • A young boy scratches the name on paper as friends and relatives of the victims of the Sept. 11 terrorist attacks on the World Trade Center attend a ceremony marking the 11th anniversary of the attacks at the National September 11 Memorial at the World Trade Center site in New York, Tuesday, Sept. 11, 2012. (AP Photo/The Daily News, Todd Maisel, Pool)

  • Two girls scratch names on paper as friends and relatives of the victims of the Sept. 11 terrorist attacks on the World Trade Center attend a ceremony marking the 11th anniversary of the attacks at the National September 11 Memorial at the World Trade Center site in New York, Tuesday, Sept. 11, 2012. (AP Photo/The Daily News, Todd Maisel, Pool)

  • Family members of Belinda Pascua Domingo of New York place mementos on her name during observances held on the eleventh anniversary of the attacks on the World Trade Center, at the site in New York, September 11, 2012. (AP Photo/Craig Ruttle, Newsday, Pool)

  • September 11 POOL image from New York

    Captain John Lam rolls up an etching of his uncle Stuart Louis on the South Tower pool wall at the National September 11 Memorial, for his aunt during observances on the eleventh anniversary of the attacks on the World Trade Center, Tuesday. Sept. 11, 2012 in New York. (AP Photo/Timothy A. Clary, Pool)

  • Nina Fisher, Mia Tinson

    Nina Fisher, sister of 9/11 victim Andrew Fisher, embraces her niece Mia Tinson, 9, at ceremonies marking the eleventh anniversary of the terrorist attacks at the World Trade Center, Tuesday, Sept. 11, 2012 in New York. Begum, who is from Bangladesh, lost her nephew, Nural Miah and his wife Shakila Yasmin, two of the many Muslims who also died the attacks. New York City is observing the eleventh anniversary of the September 11, 2001 attacks. (AP Photo/John Moore, Pool

  • Tina Grazioso, left, looks at the name of her husband, John Grazioso, at the World Trade Center Memorial, who died in the attacks at the World Trade Center, during the 11th anniversary observance, in New York, Tuesday Sep. 11, 2012. At right is John Grazioso's sister Carolee Azzarello. (AP Photo/John Moore, Getty Images, Pool)

  • Friends and relatives of the victims of the Sept. 11 terrorist attacks on the World Trade Center attend a ceremony marking the 11th anniversary of the attacks at the National September 11 Memorial at the World Trade Center site in New York, Tuesday, Sept. 11, 2012.(AP Photo/Jason DeCrow)

  • Friends and relatives of the victims of the Sept. 11 terrorist attacks on the World Trade Center attend a ceremony marking the 11th anniversary of the attacks at the National September 11 Memorial at the World Trade Center site in New York, Tuesday, Sept. 11, 2012. (AP Photo/Jason DeCrow)

  • Childhood friends from Italy, Lucrezia Susca, 78, left, and Chiara Pesce, 75, center, hold photos of their grandchildren Grace Gollante-Susca and Danny Pesce, who were also friends and died together while working at Cantor Fitzgerald, as friends and relatives of the victims of the Sept. 11 terrorist attacks on the World Trade Center attend a ceremony marking the 11th anniversary of the attacks at the National September 11 Memorial at the World Trade Center site in New York, Tuesday, Sept. 11, 2012. (AP Photo/Jason DeCrow)

  • New York Governor Andrew Cuomo, kneeling left, and New Jersey Governor Chris Christie, right, speak with Miah Afsaruddin at ceremonies for the eleventh anniversary of the attacks at the World Trade Center, in New York,Tuesday Sept. 11, 2012. Afsaruddin, from Bangladesh, lost his son Nural Miah and daughter-in-law Shakila Yasmin in the 9/11 attacks. (AP Photo/John Moore,Getty Images, POOL)

  • Former New York Mayor Rudolph Giuliani, far left, New York Mayor Michael Bloomberg, fifth left, New York Governor Andrew Cuomo, fourth right, and New Jersey Governor Chris Christie, second right, attend as friends and relatives of the victims of the Sept. 11 terrorist attacks on the World Trade Center attend a ceremony marking the 11th anniversary of the attacks at the National September 11 Memorial at the World Trade Center site in New York, Tuesday, Sept. 11, 2012. (AP Photo/Jason DeCrow)

  • The World Trade Center Flag is presented as friends and relatives of the victims of the Sept. 11 terrorist attacks on the World Trade Center attend a ceremony marking the 11th anniversary of the attacks at the National September 11 Memorial at the World Trade Center site in New York, Tuesday, Sept. 11, 2012. (AP Photo/Jason DeCrow)

  • A woman becomes emotional after reading the name of her father as friends and relatives of the victims of 9/11 gather for a ceremony marking the 11th anniversary of the attacks at the National September 11 Memorial at the World Trade Center site, Tuesday, Sept. 11, 2012, in New York. (AP Photo/Jason DeCrow)

  • Friends and relatives of the victims of the Sept. 11 terrorist attacks on the World Trade Center attend a ceremony marking the 11th anniversary of the attacks at the National September 11 Memorial at the World Trade Center site in New York, Tuesday, Sept. 11, 2012. (AP Photo/Mark Lennihan)

  • Friends and relatives of the victims of the Sept. 11 terrorist attacks, look over a reflecting pool during a ceremony at the National September 11 Memorial at the World Trade Center site in New York, Tuesday, Sept. 11, 2012.(AP Photo/Mark Lennihan)

  • Friends and families of victims of the Sept. 11, 2001, terror attacks, look over a reflecting pool during a ceremony at the National September 11 Memorial, Tuesday, Sept. 11, 2012 in New York. As in past years, thousands are expected to gather at the World Trade Center site in New York, the Pentagon and Shanksville, Pennsylvania, to read the names of nearly 3,000 victims killed in the worst terror attack in U.S. history. (AP Photo/Mark Lennihan)

  • A man paces a bouquet of flowers at a reflecting pool during a ceremony at the National September 11 Memorial, Tuesday, Sept. 11, 2012 in New York. As in past years, thousands are expected to gather at the World Trade Center site in New York, the Pentagon and Shanksville, Pennsylvania, to read the names of nearly 3,000 victims killed in the worst terror attack in U.S. history. (AP Photo/Mark Lennihan)

  • Maria Rodriguez sits with photos of her son-in-law Emilio Ortiz as friends and relatives of the victims of the Sept. 11 terrorist attacks on the World Trade Center gather for a ceremony marking the 11th anniversary of the attacks at the National September 11 Memorial in New York, Tuesday, Sept. 11, 2012. (AP Photo/Jason DeCrow)

  • Friends and relatives of the victims of the Sept. 11 terrorist attacks on the World Trade Center gather for a ceremony marking the 11th anniversary of the attacks at the National September 11 Memorial at the World Trade Center site in New York, Tuesday, Sept. 11, 2012. (AP Photo/Jason DeCrow)

  • Friends and relatives of the victims of the Sept. 11 terrorist attacks on the World Trade Center gather for a ceremony marking the 11th anniversary of the attacks at the National September 11 Memorial at the World Trade Center site in New York, Tuesday, Sept. 11, 2012. (AP Photo/Jason DeCrow)

  • A firefighter makes a rubbing of a victim's name as friends and relatives of the victims of the Sept. 11 terrorist attacks on the World Trade Center gather for a ceremony marking the 11th anniversary of the attacks at the National September 11 Memorial in New York, Tuesday, Sept. 11, 2012. (AP Photo/Jason DeCrow)

  • The tower known as 1 World Trade Center, left, the National September 11 Memorial, bottom left, and 4 World Trade Center, right, are bathed in light, Tuesday, Sept. 11, 2012 in New York. Tuesday is the eleventh anniversary of the terrorist attacks of Sept. 11, 2001. (AP Photo/Mark Lennihan)

  • Photos of victims of the attacks of September 11 and messages from their loved ones, are shown at a news conference, Monday, Sept. 10, 2012 in New York. On the eve of the Sept. 11 anniversary, the faces and recorded voices of those who died have been unveiled as part of the future 9/11 Memorial Museum. (AP Photo/Mark Lennihan)



Loading Slideshow...
  • A woman cries while looking at the names inscribed at the North Pool of the 9/11 Memorial during 10th anniversary ceremony of the September 11, 2001 terrorist attacks at the World Trade Center site Sept. 11, 2011 in New York. (Justin Lane, Pool / Getty Images)

  • A woman cries while looking at the names inscribed at the North Pool of the 9/11 Memorial during 10th anniversary ceremony of the September 11, 2001 terrorist attacks at the World Trade Center site Sept. 11, 2011 in New York. (Justin Lane, Pool / Getty Images)

  • Family members gather at the edge of the North Pool of the 9/11 Memorial during 10th anniversary ceremony of the September 11, 2001 terrorist attacks at the World Trade Center site Sept. 11, 2011 in New York. (Justin Lane, Pool / Getty Images)

  • A flag hangs from 1 World Trade Center, left, as friends and family of the victims of 9/11 attend a ceremony marking the 10th anniversary of the attacks on Sunday, Sept. 11, 2011 in New York. (Damon Dahlen, AOL)

  • Former U.S. President George W. Bush and family and the U.S. President Barack Obama and First Lady Michelle Obama view the North memorial pool during 10th anniversary ceremony of the September 11, 2001 terrorist attacks at the World Trade Center site Sept. 11, 2011 in New York. (Carolyn Cole, Pool / Getty Images)

  • Family members of the victims enter the 9/11 Memorial Plaza for the first time during 10th anniversary ceremony of the September 11, 2001 terrorist attacks at the World Trade Center site Sept. 11, 2011 in New York. (Chip Somodevilla, Getty Images)

  • People gather to watch the Sept. 11 memorial ceremony on the 10th anniversary of the attacks of 9/11 in New York, Sunday, Sept. 11, 2011. (Myra Iqbal, AOL)

  • Bagpipers walk towards the stage past the North Pool of the 9/11 Memorial during 10th anniversary ceremony of the September 11, 2001 terrorist attacks at the World Trade Center site Sept. 11, 2011 in New York. (Justin Lane, Pool / Getty Images)

  • People gather during a ceremony marking the 10th anniversary of the attacks on the World Trade Center Sunday, Sept. 11, 2011, outside the World Trade Center site in New York. (AP Photo/Oded Balilty)

  • Family members pay respects in front of one of the two waterfall pools during a ceremony marking the 10th anniversary of the World Trade Center attacks, at the National September 11 Memorial at the World Trade Center site Sunday, Sept. 11, 2011, in New York. (AP Photo/Matt Rourke)

  • People gather during a ceremony marking the 10th anniversary of the attacks on the World Trade Center Sunday, Sept. 11, 2011, outside the World Trade Center site in New York. (AP Photo/Oded Balilty)

  • People gather during a ceremony marking the 10th anniversary of the attacks on the World Trade Center Sunday, Sept. 11, 2011, outside the World Trade Center site in New York. (AP Photo/Oded Balilty)

  • Family members of the victims of the attacks at the World Trade Center, Sept. 11, 2001, enter the Sept. 11 memorial plaza during the 10th anniversary ceremonies at the site, Sunday Sept. 11, 2011, in New York. (AP Photo/Chip Somodevilla, Pool)

  • A woman reacts after the name of a family member is read during a ceremony to mark the 10th anniversary of the 9/11 attacks on the World Trade Center Sunday, Sept. 11, 2011, in New York. (AP Photo/Noah K. Murray, Pool)

  • Family members visit the south reflecting pool of the Sept. 11 memorial during 10th anniversary at the site, Sunday, Sept. 11, 2011, in New York. (AP Photo/Todd Heisler, Pool)

  • The World Trade Center flag is presented during a ceremony marking the 10th anniversary of the 9/11 attacks at the World Trade Center site in New York, Sunday, Sept. 11, 2011. (Damon Dahlen, AOL)

  • President Barack Obama, first lady Michelle Obama, former President George W. Bush and former first lady Laura Bush attend a ceremony marking the 10th anniversary of the 9/11 attacks on Sunday, Sept. 11, 2011 in New York. (Damon Dahlen, AOL)

  • Paulette Nelson, from Savannah, Ga., watches a ceremony marking the 10th anniversary of the 9/11 attacks on Sunday, Sept. 11, 2011 in New York. (Myra Iqbal, AOL)

  • New York City Commemorates 10th Anniversary Of 9-11 Terror Attacks

    NEW YORK, NY - SEPTEMBER 11: Paul Simon performs at the 9/11 Memorial during the tenth anniversary ceremonies of the September 11, 2001 terrorist attacks at the World Trade Center site, September 11, 2011 in New York City. New York City and the nation are commemorating the tenth anniversary of the terrorist attacks which resulted in the deaths of nearly 3,000 people after two hijacked planes crashed into the World Trade Center, one into the Pentagon in Arlington, Virginia and one crash landed in Shanksville, Pennsylvania. (Photo by Allan Tannenbaum-Pool/Getty Images)

  • September 11th Ten Year Anniversary at Ground Zero

    People tie ribbons to the St. Pauls Chapel fence in commemoration of the September 11th attacks on the United States. People from all over the world flock to Ground Zero for the upcoming ten year anniversary of the Sept. 11, 2001 attacks on the World Trade Center in New York on Saturday September 10, 2011. (Damon Dahlen, AOL)

  • September 11th Ten Year Anniversary at Ground Zero

    People tie ribbons to the St. Pauls Chapel fence in commemoration of the September 11th attacks on the United States. People from all over the world flock to Ground Zero for the upcoming ten year anniversary of the Sept. 11, 2001 attacks on the World Trade Center in New York on Saturday September 10, 2011. (Damon Dahlen, AOL)

  • September 11th Ten Year Anniversary at Ground Zero

    People tie ribbons to the St. Pauls Chapel fence in commemoration of the September 11th attacks on the United States. People from all over the world flock to Ground Zero for the upcoming ten year anniversary of the Sept. 11, 2001 attacks on the World Trade Center in New York on Saturday September 10, 2011. (Damon Dahlen, AOL)

  • September 11th Ten Year Anniversary at Ground Zero

    People tie ribbons to the St. Pauls Chapel fence in commemoration of the September 11th attacks on the United States. People from all over the world flock to Ground Zero for the upcoming ten year anniversary of the Sept. 11, 2001 attacks on the World Trade Center in New York on Saturday September 10, 2011. (Damon Dahlen, AOL)

  • September 11th Ten Year Anniversary at Ground Zero

    Road blocks in downtown Manhattan with police inspections have been formed in light of a possible terror plot to attack the National September 11th Memorial at Ground Zero. People from all over the world flock to Ground Zero for the upcoming ten year anniversary of the Sept. 11, 2001 attacks on the World Trade Center in New York on Saturday September 10, 2011. (Damon Dahlen, AOL)

  • September 11th Ten Year Anniversary at Ground Zero

    Chere Rosadesharon sells posters to passersby at the FDNY Memorial Wall at Ground Zero. People from all over the world flock to Ground Zero for the upcoming ten year anniversary of the Sept. 11, 2001 attacks on the World Trade Center in New York on Saturday September 10, 2011. (Damon Dahlen, AOL)

  • September 11th Ten Year Anniversary at Ground Zero

    Ray Coyle holds a wooden flower with an eagle imprinted on it that he sells to people at the FDNY Memorial Wall at Ground Zero. People from all over the world flock to Ground Zero for the upcoming ten year anniversary of the Sept. 11, 2001 attacks on the World Trade Center in New York on Saturday September 10, 2011. (Damon Dahlen, AOL)

  • September 11th Ten Year Anniversary at Ground Zero

    Firefighters pose for a photo at the FDNY Memorial Wall at Ground Zero. People from all over the world flock to Ground Zero for the upcoming ten year anniversary of the Sept. 11, 2001 attacks on the World Trade Center in New York on Saturday September 10, 2011. (Damon Dahlen, AOL)

  • September 11th Ten Year Anniversary at Ground Zero

    Visitors to Ground Zero place mementos at the FDNY Memorial Wall. People from all over the world flock to Ground Zero for the upcoming ten year anniversary of the Sept. 11, 2001 attacks on the World Trade Center in New York on Saturday September 10, 2011. (Damon Dahlen, AOL)

  • September 11th Ten Year Anniversary at Ground Zero

    Visitors to Ground Zero write on a poster at the Ground Zero site. People from all over the world flock to Ground Zero for the upcoming ten year anniversary of the Sept. 11, 2001 attacks on the World Trade Center in New York on Saturday September 10, 2011. (Damon Dahlen, AOL)

  • September 11th Ten Year Anniversary at Ground Zero

    Denise Rooney and son Tomas Rooney check out the FDNY Memorial Wall to find what they believe is a distant relative from England that was killed in the 2001 terrorist attacks on the World Trade Centers. People from all over the world flock to Ground Zero for the upcoming ten year anniversary of the Sept. 11, 2001 attacks on the World Trade Center in New York on Saturday September 10, 2011. (Damon Dahlen, AOL)

  • September 11th Ten Year Anniversary at Ground Zero

    Tim Bolles and daughters Anna and Averyl check out a sign with the names of the victims of the terrorist attacks on the United State. People from all over the world flock to Ground Zero for the upcoming ten year anniversary of the Sept. 11, 2001 attacks on the World Trade Center in New York on Saturday September 10, 2011. (Damon Dahlen, AOL)

  • September 11th Ten Year Anniversary at Ground Zero

    Seon Youhg from South Korea places a note card sentiment for the victims of the September 11th terrorist attacks on the United States on a board in Battery Park. People from all over the world flock to Ground Zero for the upcoming ten year anniversary of the Sept. 11, 2001 attacks on the World Trade Center in New York on Saturday September 10, 2011. (Damon Dahlen, AOL)

  • September 11th Ten Year Anniversary at Ground Zero

    Tom Steel and Pam Crabb both from England pose for photographs in Battery Park. People from all over the world flock to Ground Zero for the upcoming ten year anniversary of the Sept. 11, 2001 attacks on the World Trade Center in New York on Saturday September 10, 2011. (Damon Dahlen, AOL)

  • September 11th Ten Year Anniversary at Ground Zero

    Visitors to Battery Park check out the thousands of flags erected in the park in remembrance of the victims of the September 11th terrorist attacks on the United States. People from all over the world flock to Ground Zero for the upcoming ten year anniversary of the Sept. 11, 2001 attacks on the World Trade Center in New York on Saturday September 10, 2011. (Damon Dahlen, AOL)

  • September 11th Ten Year Anniversary at Ground Zero

    Visitors to Battery Park check out the thousands of flags erected in the park in remembrance of the victims of the September 11th terrorist attacks on the United States. People from all over the world flock to Ground Zero for the upcoming ten year anniversary of the Sept. 11, 2001 attacks on the World Trade Center in New York on Saturday September 10, 2011. (Damon Dahlen, AOL)

  • September 11th Ten Year Anniversary at Ground Zero

    Visitors to Battery Park check out the thousands of flags erected in the park in remembrance of the victims of the September 11th terrorist attacks on the United States. People from all over the world flock to Ground Zero for the upcoming ten year anniversary of the Sept. 11, 2001 attacks on the World Trade Center in New York on Saturday September 10, 2011. (Damon Dahlen, AOL)

  • September 11th Ten Year Anniversary at Ground Zero

    Roberta Daveri and Laura Todescato both from Italy check out the notes people had written and attached to a board setup in Battery Park. People from all over the world flock to Ground Zero for the upcoming ten year anniversary of the Sept. 11, 2001 attacks on the World Trade Center in New York on Saturday September 10, 2011. (Damon Dahlen, AOL)

  • September 11th Ten Year Anniversary at Ground Zero

    A large amount of police cruisers and officers arrive at the National September 11th Memorial in prepartion for the opening of the Memorial on the tenth anniversary of the terrorist attacks on the United States. People from all over the world flock to Ground Zero for the upcoming ten year anniversary of the Sept. 11, 2001 attacks on the World Trade Center in New York on Saturday September 10, 2011. (Damon Dahlen, AOL)

  • September 11th Ten Year Anniversary at Ground Zero

    A large amount of police cruisers and officers arrive at the National September 11th Memorial in prepartion for the opening of the Memorial on the tenth anniversary of the terrorist attacks on the United States. People from all over the world flock to Ground Zero for the upcoming ten year anniversary of the Sept. 11, 2001 attacks on the World Trade Center in New York on Saturday September 10, 2011. (Damon Dahlen, AOL)

  • September 11th Ten Year Anniversary at Ground Zero

    An overview of the National September 11th Memorial site can be seen on September 10, 2011. People from all over the world flock to Ground Zero for the upcoming ten year anniversary of the Sept. 11, 2001 attacks on the World Trade Center in New York on Saturday September 10, 2011. (Damon Dahlen, AOL)

  • The annual “Tribute in Light” memorial e

    The annual “Tribute in Light” memorial echoing the twin towers of the World Trade Center illuminates the night sky during the 10th Anniversary of the September 11, 2001 attacks at the lower Manhattan site of the World Trade Center September 11, 2011, in this view from Bayonne, New Jersey. Also seen are the Statue of Liberty (C) and 1 World Trade Center (L). AFP PHOTO/Stan HONDA (Photo credit should read STAN HONDA/AFP/Getty Images)

  • September 11th Ten Year Anniversary at Ground Zero

    A beam of light shines at ground zero on the eve of the tenth anniversary of the terrorist attacks of 9/11 in the Manhattan Borough of New York on Saturday, September 10, 2011. (Myra Iqbal, AOL)