U.S. Secretary of State John Kerry takes a guided tour of the Diego Rivera murals at the Palacio Nacional...
U.S. Secretary of State John Kerry takes a guided tour of the Diego Rivera murals at the Palacio Nacional in Mexico City, May 21, 2014. Impatience with the Venezuelan government is growing over its "total failure" to show good faith in talks to resolve the country's political crisis, Kerry said on Wednesday. REUTERS/Carolyn Kaster/Pool (MEXICO - Tags: POLITICS SOCIETY)