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Gun control: America’s most complicated debate
AP/Jacquelyn Martin
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President Barack Obama returns to the White House in Washington after attending an interfaith vigil for the victims of the Sandy Hook Elementary School shooting on Sunday, Dec. 16, 2012 at Newtown High School in Newtown, Conn. A gunman walked into Sandy Hook Elementary School on Friday and opened fire, killing 26 people, including 20 children. (AP Photo/Jacquelyn Martin)
