U.S. President Barack Obama (R), with Vice President Joe Biden at his side, speaks to the media at the White House briefing room in Washington D.C. on Dec. 19, 2012. Obama on Wednesday announced a gun control task force led by Vice President Joe Biden. The inter-agency task force is charged with guiding the administration's continuing response to calls of gun control after the Newtown, Connecticut, massacre. (Xinhua/Fang Zhe)

U.S. President Barack Obama (R), with Vice President Joe Biden at his side, speaks to the media at the White House briefing room in Washington D.C. on Dec. 19, 2012. Obama on Wednesday announced a gun control task force led by Vice President Joe Biden. The inter-agency task force is charged with guiding the administration's continuing response to calls of gun control after the Newtown, Connecticut, massacre. (Xinhua/Fang Zhe)

U.S. President Barack Obama (R), with Vice President Joe Biden at his side, speaks to the media at the White House briefing room in Washington D.C. on Dec. 19, 2012. Obama on Wednesday announced a gun control task force led by Vice President Joe Biden. The inter-agency task force is charged with guiding the administration's continuing response to calls of gun control after the Newtown, Connecticut, massacre. (Xinhua/Fang Zhe)