Rinaldo Americo, an impersonator of President Barack Obama, second from right, poses for photos with tourists who stopped their van to greet him, as two men impersonate his security detail in Cinelandia Square where the real President Obama will be giving a speech in Rio de Janeiro, Brazil, Wednesday March 16, 2011.  Obama is scheduled to visit Brazil on March 19 and 20 as part of a Latin American tour that also includes Chile and El Salvador. (AP Photo/Felipe Dana)
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