WASHINGTON -- Sen. Jay Rockefeller (D-W.Va.) has introduced one of Congress' first pieces of legislation related to the tragedy in Newtown, Conn.: a bill to study the impact of violent video games on children.

"This week, we are all focused on protecting our children. At times like this, we need to take a comprehensive look at all the ways we can keep our kids safe. I have long expressed concern about the impact of the violent content our kids see and interact with every day," said Rockefeller, who is chairman of the Senate Commerce Committee.

Rockefeller's bill would direct the National Academy of Sciences to lead the investigation on video games' impact and submit a report on its findings within 18 months.

The legislation comes after reports suggested that Sandy Hook shooter Adam Lanza may have played video games like "Call of Duty" and "Starcraft."

Other lawmakers, such as Sen. Richard Blumenthal (D-Conn.) and Sen. Joe Lieberman (D-Conn.), have also expressed support for scrutinizing the content of video games.

"Recent court decisions demonstrate that some people still do not get it," added Rockefeller. "They believe that violent video games are no more dangerous to young minds than classic literature or Saturday morning cartoons. Parents, pediatricians, and psychologists know better. These court decisions show we need to do more and explore ways Congress can lay additional groundwork on this issue. This report will be a critical resource in this process."

In 2011, the Supreme Court struck down a California law banning the sale of violent video games to minors. Justice Antonin Scalia, writing for a 7-2 majority, said the law was "unprecedented and mistaken" and noted that fairy tales -- which are read to children at bedtime -- have "no shortage of gore."

The Entertainment Software Association, which lobbies on behalf of the video game industry, did not return a request for comment. It has consistently argued, however, that video games do not make people violent.

"The myth that video games cause violent behavior is undermined by scientific research and common sense," said Michael Gallagher, president of ESA, in 2010. "According to FBI statistics, youth violence has declined in recent years as computer and video game popularity soared. We do not claim that the increased popularity of games caused the decline, but the evidence makes a mockery of the suggestion that video games cause violent behavior."

Max Fisher at The Washington Post analyzed the 10 largest video game markets in the world and found no statistical correlation between video game consumption and gun-related killings.

Investigating the violent content of media is not without precedent. In the 1950s, for example, Congress looked at whether "crime and horror" comic books were impacting juvenile delinquency.

Rockefeller's bill comes before any legislation in the Senate to look at the role guns play in violent incidents, although both Sen. Dianne Feinstein (D-Calif.) and Sen. Frank Lautenberg (D-N.J.) have announced plans to introduce gun control legislation in the next Congress. In the House, Rep. Carolyn McCarthy (D-N.Y.) and Rep. Diana DeGette (D-Colo.) are pushing a bill mirroring Lautenberg's that would ban the manufacturing of high-capacity magazines.

On Wednesday, President Barack Obama announced that Vice President Joe Biden will lead the White House's effort to address gun violence.

UPDATE: In a statement, the Entertainment Software Association responded:

The Entertainment Software Association, and the entire industry it represents, mourns the tragedy at Sandy Hook Elementary School. Our heartfelt prayers and condolences go out to the families who lost loved ones, and to the entire community of Newtown.

The search for meaningful solutions must consider the broad range of actual factors that may have contributed to this tragedy. Any such study needs to include the years of extensive research that has shown no connection between entertainment and real-life violence.

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  • Rep. Louie Gohmert (R-Texas)

    "I wish to God she had had an m-4 in her office, locked up so when she heard gunfire, she pulls it out ... and takes him out and takes his head off before he can kill those precious kids," Gohmert said of slain principal Dawn Hochsprung on <a href="http://www.huffingtonpost.com/2012/12/16/louie-gohmert-guns_n_2311379.html"><em>Fox News Sunday</em></a>. He argued that shooters often choose schools because they know people will be unarmed.

  • Virginia Gov. Bob McDonnell (R)

    "If people were armed, not just a police officer, but other school officials that were trained and chose to have a weapon, certainly there would be an opportunity to stop an individual trying to get into the school," he <a href="http://www.wtop.com/610/3162096/Gov-Is-it-time-to-arm-school-officials">told WTOP's "Ask the Governor" show</a> Tuesday, warning that Washington may respond to such a policy with a "knee-jerk reaction."

  • Tennessee Gov. Bill Haslam (R) & State Sen. Frank Niceley (R)

    Gov. Haslam says he will consider a Tennessee plan to secretly arm and train some teachers, <a href="http://tpmdc.talkingpointsmemo.com/2012/12/tennessee-armed-teachers.php">TPM reports</a>. The legislation will be introduced by State Sen. Frank Niceley (R) next month. "Say some madman comes in. The first person he would probably try to take out was the resource officer. But if he doesn’t know which teacher has training, then he wouldn’t know which one had [a gun]," Niceley told TPM. "These guys are obviously cowards anyway and if someone starts shooting back, they’re going to take cover, maybe go ahead and commit suicide like most of them have."

  • Oklahoma State Rep. Mark McCullough (R) & State Sen. Ralph Shortey (R)

    State Rep. Mark McCullough (R) <a href="http://www.tulsaworld.com/news/article.aspx?subjectid=336&articleid=20121217_336_0_OKLAHO168827">told the Tulsa World</a> he plans to file legislation that would bring guns into schools, calling their absence "irresponsible." “It is incredibly irresponsible to leave our schools undefended – to allow mad men to kill dozens of innocents when we have a very simple solution available to us to prevent it," he said. "I’ve been considering this proposal for a long time. In light of the savagery on display in Connecticut, I believe it’s an idea whose time has come." Sen. Ralph Shortey (R) told the Tulsa World that teachers should carry concealed weapons at school events. "Allowing teachers and administrators with concealed-carry permits the ability to have weapons at school events would provide both a measure of security for students and a deterrent against attackers," he said.

  • Florida State Rep. Dennis Baxley (R)

    Baxley, who once sponsored Florida's controversial Stand Your Ground law, <a href="http://politics.heraldtribune.com/2012/12/17/florida-legislator-allow-guns-in-schools/">told the Sarasota Herald-Tribune </a>that keeping guns out of schools makes them a target for attacks. “We need to be more realistic at looking at this policy," he said. "In our zealousness to protect people from harm we’ve created all these gun-free zones and what we’ve inadvertently done is we’ve made them a target. A helpless target is exactly what a deranged person is looking for where they cannot be stopped.”

  • Texas Gov. Rick Perry (R)

    At a Tea Party event Monday night, <a href="http://www.huffingtonpost.com/2012/12/18/rick-perry-guns-in-schools_n_2322185.html">Perry praised a Texas school system that allows some staff to carry concealed weapons to work</a> and encouraged local school districts to make their own policies.

  • Minnesota State Rep. Tony Cornish (R)

    Cornish <a href="http://www.kdlt.com/index.php?option=com_content&task=view&id=22736&Itemid=57">plans to introduce legislation that would allow teachers to arm themselves</a>, according to the AP.

  • Oregon State Rep. Dennis Richardson (R)

    In an email <a href="http://www.huffingtonpost.com/2012/12/17/oregon-state-rep-dennis-richardson-teacher-guns-stopped-connecticut-shooting_n_2317444.html?ir=Education">obtained by Gawker</a> and excerpted below, Richardson tells three superintendents that he could have saved lives had he been armed and in Sandy Hook on Friday: <blockquote>If I had been a teacher or the principal at the Sandy Hook Elementary School and if the school district did not preclude me from having access to a firearm, either by concealed carry or locked in my desk, most of the murdered children would still be alive, and the gunman would still be dead, and not by suicide. ... [O]ur children's safety depends on having a number of well-trained school employees on every campus who are prepared to defend our children and save their lives?</blockquote>

  • Former Education Secretary Bill Bennett

    "And I'm not so sure -- and I'm sure I'll get mail for this -- I'm not so sure I wouldn't want one person in a school armed, ready for this kind of thing," Bennett, who served as education secretary under Ronald Reagan, <a href="http://www.huffingtonpost.com/2012/12/16/bill-bennett-education-secretary-connecticut-shooting_n_2311774.html">told <em>Meet the Press</em> Sunday</a>. "The principal lunged at this guy. The school psychologist lunged at the guy. It has to be someone who's trained, responsible. But, my god, if you can prevent this kind of thing, I think you ought to."