National Mall

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Blackwell Memorial AME Zion Church Pastor Samuel Saylor of Hartford, Conn. speaks to members of the media about his son, Shane Isaiah "KC" Oliver who was shot to death in the back in 2012 as religious leaders around the country begin a 24-hour vigil on the National Mall to honor the victims of gun violence since the school shooting in Newtown, Conn., Washington, D.C., Thursday, April 11, 2013.(Andrew Harnik/The Washington Times)

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Religious leaders try to comfort Blackwell Memorial AME Zion Church Pastor Samuel Saylor of Hartford, Conn. as he breaks down after speaking to members of the media about his son, Shane Isaiah "KC" Oliver who was shot to death in the back in 2012 as religious leaders around the country begin a 24-hour vigil on the National Mall to honor the victims of gun violence since the school shooting in Newtown, Conn., Washington, D.C., Thursday, April 11, 2013.(Andrew Harnik/The Washington Times)

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Religious leaders try to comfort Blackwell Memorial AME Zion Church Pastor Samuel Saylor of Hartford, Conn., center right, as he breaks down after speaking to members of the media about his son, Shane Isaiah "KC" Oliver who was shot to death in the back in 2012 as religious leaders around the country begin a 24-hour vigil on the National Mall to honor the victims of gun violence since the school shooting in Newtown, Conn., Washington, D.C., Thursday, April 11, 2013.(Andrew Harnik/The Washington Times)

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Bravon Freeman, 18, right, and another volunteer with Park View Kids Zone in Northwest, left, helps put down thousands of grave markers to represent victims of gun violence on the National Mall, Washington, D.C., Thursday, April 11, 2013. Religious leaders around the country begin a 24-hour vigil to honor the victims of gun violence since the shooting in Newtown.(Andrew Harnik/The Washington Times)

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Religious leaders around the country begin a 24-hour vigil on the National Mall to honor the victims of gun violence since the school shooting in Newtown, Conn., Washington, D.C., Thursday, April 11, 2013.(Andrew Harnik/The Washington Times)

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Warmer weather greeted participants in the Cherry Blossom Ten Mile run Sunday, though there still was a chill in the air when it kicked off at 7:30 a.m. Some got close to get warm while members of the Hash Club handed out beers on the National Mall as the cherry blossoms tried to make an appearance. (Andrew Harnik/The Washington Times)

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Warmer weather greeted participants in the Cherry Blossom Ten Mile run Sunday, though there still was a chill in the air when it kicked off at 7:30 a.m. Some got close to get warm while members of the Hash Club handed out beers on the National Mall as the cherry blossoms tried to make an appearance. (Andrew Harnik/The Washington Times)

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Warmer weather greeted participants in the Cherry Blossom Ten Mile run Sunday, though there still was a chill in the air when it kicked off at 7:30 a.m. Some got close to get warm while members of the Hash Club handed out beers on the National Mall as the cherry blossoms tried to make an appearance. (Andrew Harnik/The Washington Times)

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Supporters of President Obama wave American flags on the National Mall in Washington on Jan. 21, 2013, prior to the start of the president's ceremonial swearing-in during the 57th Presidential Inauguration. (Associated Press)

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A vendor holds items for sale on the National Mall with the U.S. Capitol prepared for the ceremonial swearing-in of President Barack Obama, the 57th Presidential Inaugural, Sunday, Jan. 20, 2013 in Washington. (AP Photo/Alex Brandon)

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John Osler of Detroit, carries his artwork that is for sale, as he walks on the National Mall Sunday, Jan. 20, 2013, with the U.S. Capitol prepared for ceremonial swearing-in of President Barack Obama, the 57th Presidential Inaugural on Monday in Washington. (AP Photo/Alex Brandon)