FORT MEADE, Md. -- Reporters have become accustomed to running a gauntlet of bomb-sniffing dogs and court-record declassification procedures to cover the trial of Bradley Manning. But secrecy and security may have reached new heights during closing arguments on Thursday.

Armed military policemen patrolled the aisles in the media center and searched reporters with handheld metal detectors. Meanwhile, key testimony and evidence referenced by prosecutor Cpt. Ashden Fein during his closing statement have yet to be released to the public.

Col. Denise Lind, the judge overseeing the case, ordered the increased security measures "because of the repeat violations of the rules of the court both in the courtroom and the media operations center with regard to broadcasting and electronics," the Military District of Washington said in a emailed, unsigned statement. "The Military Police are to screen personnel to ensure no one is bringing prohibited electronics into the building and to ensure compliance with the rules of the court."

Several journalists expressed displeasure with the developments.

The heightened media-room safeguards may have been motivated in part by an incident that occurred during Manning's court martial in February. Someone attending a pre-trial hearing recorded a plea statement Manning made accepting responsibility for 10 of the 22 charges against him. Lind registered her strong displeasure with that action, a violation of courtroom rules, but did not significantly alter security procedures.

Aside from the MPs peering over journalists' shoulders and the lack of wireless Internet access in the remote media room -- another new development Thursday -- coverage of the trial was perhaps more hampered by the military's refusal to publish key documents Fein used to build his closing argument.

Among the files yet to be declassified or released: chat logs between Manning and a correspondent the government alleges was WikiLeaks founder Julian Assange, and testimony in closed session from Defense Information Agency expert Daniel Lewis about the value of leaked war logs to foreign powers.

Fein said the chats show Manning knew WikiLeaks was "anything but a journalistic enterprise." He also said that Lewis's analysis proved the Afghanistan War Logs would have been worth at least $1.3 million to a foreign intelligence service, and the Iraq logs $1.9 million.

But without the release of those logs and Lewis's testimony, at least in declassified form, it's difficult for the press or the public to evaluate those claims.

A group of journalists and activists, including Assange, sued the military in civilian federal court before Manning's trial began to gain greater access to military court records. But after the military claimed that it would adopt a 1- to 2-day "goal" of publishing court records, the judge tossed the lawsuit. That goal has been only sporadically met.

This article has been updated to include the statement from the Military District of Washington.

Also on HuffPost:

Loading Slideshow...
  • The sun rises behind the U.S. Capitol Dome early in the morning before the ceremonial swearing-in of President Barack Obama during the 57th Presidential Inauguration in Washington, Monday, Jan. 21, 2013. (AP Photo/Paul Sancya)

  • The Capitol dome is silhouetted as the sun rises in Washington, Monday, Oct. 15, 2012. (AP Photo/J. Scott Applewhite)

  • The moon rises behind the U.S. Capitol Dome in Washington as Congress worked into the late evening, Sunday, Dec. 30, 2012 to resolve the stalemate over the pending "fiscal cliff." (AP Photo/J. David Ake)

  • Dark clouds surround the Capitol dome on Capitol Hill in Washington, Friday, June 1, 2012, as severe weather comes to the area. (AP Photo/Alex Brandon)

  • The U.S. Capitol dome is seen on December on 17, 2010 in Washington, D.C. (KAREN BLEIER/AFP/Getty Images)

  • The dome of the Capitol is reflected in a skylight of the Capitol Visitor's Center in Washington, Tuesday, Jan. 1, 2013. (AP Photo/Jacquelyn Martin)

  • Storm clouds fill the sky over the U.S. Capitol Building, June 13, 2013 in Washington, D.C. (Photo by Mark Wilson/Getty Images)

  • Law enforcement officers line up on the lawn on the east side of the U.S. Capitol during the 32nd annual National Peace Officers' Memorial Service at the U.S. Capitol May 15, 2013 in Washington, D.C. (Photo by Chip Somodevilla/Getty Images)

  • Storm clouds fill the sky over the U.S. Capitol Building, June 13, 2013 in Washington, D.C. (Photo by Mark Wilson/Getty Images)

  • A U.S. flag flies at half staff on the U.S. Capitol April 15, 2013 on Capitol Hill in Washington, D.C. (Photo by Alex Wong/Getty Images)

  • The U.S. Capitol dome and Christmas tree are seen December 18, 2011 in Washington. (KAREN BLEIER/AFP/Getty Images)

  • A view of the U.S. Capitol's rotunda and a TV truck's satellite dish before the State of the Union address on Capitol Hill January 25, 2011 in Washington, D.C. (Photo by Brendan Smialowski/Getty Images)

  • A flag flies at half-mast over the dome of the U.S. Capitol in Washington, D.C., January 10, 2011, in honor of the six people killed in the shooting in Tucson, Arizona, that also severely wounded Arizona Representative Gabrielle Giffords. SAUL LOEB/AFP/Getty Images)

  • A Christmas after being lit by U.S. House Speaker Nancy Pelosi, D-Calif, is pictured before the Capitol Hill dome in Washington on December 7, 2010. (JEWEL SAMAD/AFP/Getty Images)

  • The Capitol Dome is seen during a rehearsal for the Inauguration Ceremony January 11, 2009. (PAUL J. RICHARDS/AFP/Getty Images)

  • The U.S. flag flies in front of the US Capitol dome on December 24, 2008 in Washington, D.C. (KAREN BLEIER/AFP/Getty Images)

  • The dome of the U.S. Capitol is seen at dusk on December 9, 2008 in Washington, D.C. (KAREN BLEIER/AFP/Getty Images)

  • The Capitol dome is seen silhouetted against the rising sun in Washington, DC, on February 1, 2010. (JEWEL SAMAD/AFP/Getty Images)

  • The illuminated Capitol Dome is pictured late November 21, 2008 in Washington, D.C. (PAUL J. RICHARDS/AFP/Getty Images)

  • The dome of the U.S. Capitol is seen in Washington, D.C. on September 20, 2008. (KAREN BLEIER/AFP/Getty Images)