U.S. President Barack Obama and first lady Michelle Obama observe a moment of silence in memory of the 20 children and six school workers killed by a gunman at Sandy Hook Elementary School one year ... more 
U.S. President Barack Obama and first lady Michelle Obama observe a moment of silence in memory of the 20 children and six school workers killed by a gunman at Sandy Hook Elementary School one year ago, in the Map Room at the White House in Washington, December 14, 2013. Obama marked the anniversary of the Newtown, Connecticut, school shootings on Saturday by calling for tighter gun control and expanded mental health care. REUTERS/Jonathan Ernst (UNITED STATES - Tags: POLITICS OBITUARY) less 
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Reuters | Photo By JONATHAN ERNST / REUTERS
Sat, Dec 14, 2013 10:21 AM EST