U.S. Vice President Joe Biden sits during a photo opportunity with Brazil’s President Dilma Rousseff, not pictured, at the Planalto presidential palace in Brasilia, Friday, May 31, 2013. (AP Photo/Eraldo Peres)

Associated Press
U.S. Vice President Joe Biden sits during a photo opportunity with Brazil’s President Dilma Rousseff, not pictured, at the Planalto presidential palace in Brasilia, Friday, May 31, 2013. (AP Photo/Eraldo Peres)
U.S. Vice President Joe Biden sits during a photo opportunity with Brazil’s President Dilma Rousseff, not pictured, at the Planalto presidential palace in Brasilia, Friday, May 31, 2013. (AP Photo/Eraldo Peres)
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