Entertainment_Culture

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In this photo provided by CBS, Comedy Central’s Stephen Colbert, left, joins host David Letterman on the set of the “Late Show with David Letterman,” Tuesday, April 22, 2014, in New York. This was Colbert’s first visit to the show since CBS announced that he will succeed Letterman as host when he retires in 2015. (AP Photo/Jeffrey R. Staab) MANDATORY CREDIT, NO SALES, NO ARCHIVE, FOR NORTH AMERICAN USE ONLY

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In this photo provided by CBS, Comedy Central’s Stephen Colbert, left, takes a “selfie” with host David Letterman on the set of the “Late Show with David Letterman,” Tuesday, April 22, 2014 in New York. This was Colbert’s first visit to the show since CBS announced that he will succeed Letterman as host when he retires in 2015. (AP Photo/Jeffrey R. Staab) MANDATORY CREDIT, NO SALES, NO ARCHIVE, FOR NORTH AMERICAN USE ONLY

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In this photo provided by CBS, Comedy Central’s Stephen Colbert, left, shakes hands with host David Letterman on the set of the “Late Show with David Letterman,” Tuesday, April 22, 2014, in New York. This was Colbert’s first visit to the show since CBS announced that he will succeed Letterman as host when he retires in 2015. (AP Photo/Jeffrey R. Staab) MANDATORY CREDIT, NO SALES, NO ARCHIVE, FOR NORTH AMERICAN USE ONLY

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Home Front: Navy Cmdr. Steven Dundas, one of numerous military officers struggling to cope with post-traumatic stress disorder, says one of the few places he finds peace is in baseball stadiums. "It's kind of like 'Cheers' for me," he said, comparing Harbor Park in Virginia to the TV show "where everybody knows your name." (Eva Russo/Special to The Washington Times)

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Rwandan President Paul Kagame responds to a question while participating in a panel discussion on the campus of Tufts University, Tuesday, April 22, 2014, in Medford, Mass. Kagame addresses an audience Tuesday on issues relating to the 20th anniversary of the genocide of the Tutsis. (AP Photo/Steven Senne)

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Rwandan President Paul Kagame addresses an audience on the campus of Tufts University, Tuesday, April 22, 2014, in Medford, Mass. Kagame spoke on issues relating to the 20th anniversary of the genocide of the Tutsis. (AP Photo/Steven Senne)

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Rwandan President Paul Kagame addresses an audience while taking a question during a panel discussion on the campus of Tufts University, Tuesday, April 22, 2014, in Medford, Mass. Kagame spoke on issues relating to the 20th anniversary of the genocide of the Tutsis. (AP Photo/Steven Senne)

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Rwandan President Paul Kagame listens to a question while participating in a panel discussion on the campus of Tufts University, Tuesday, April 22, 2014, in Medford, Mass. Kagame addresses an audience Tuesday on issues relating to the 20th anniversary of the genocide of the Tutsis. (AP Photo/Steven Senne)