President Barack Obama arrives to participate in a news conference in the Rose Garden of the White House, Wednesday, April 17, 2013, in Washington, about measures to reduce gun violence

 

              President Barack Obama arrives to participate in a news conference in the Rose Garden of the White House, Wednesday, April 17, 2013, in Washington, about measures to reduce gun violence
President Barack Obama arrives to participate in a news conference in the Rose Garden of the White House, Wednesday, April 17, 2013, in Washington, about measures to reduce gun violence. With tObama is former Rep. Gabby Giffords, left, and Mark Barden, the father of Newtown shooting victim Daniel. (AP Photo/Carolyn Kaster)