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President Barack Obama looks out of the "door of no return" during a tour of Goree Island, Thursday, June 27, 2013, in Goree Island, Senegal. Goree Island is the site of the former slave house and embarkation point built by the Dutch in 1776, from which slaves were brought to the Americas. The "door of no return" was the entrance to the slave ships. (AP Photo/Evan Vucci)