In this photo provided by Peru's Presidency, Brazil's President Dilma Rouseff arrives 

In this photo provided by Peru's Presidency, Brazil's President Dilma Rouseff arrives to the government palace to attend a UNSASUR meeting in Lima, Peru, Thursday, April 18, 2013. Rouseff arrived to Lima for an evening meeting of presidents of the Union of South American Nations, UNASUR, to discuss Venezuela's post-election tensions. (AP Photo/Peru's Presidency)
Associated Press
In this photo provided by Peru's Presidency, Brazil's President Dilma Rouseff arrives to the government palace to attend a UNSASUR meeting in Lima, Peru, Thursday, April 18, 2013. Rouseff arrived to Lima for an evening meeting of presidents of the Union of South American Nations, UNASUR, to discuss Venezuela's post-election tensions. (AP Photo/Peru's Presidency)
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