People look down at U.S. Vice President Joe Biden as he speaks with journalists during his visit to the Santa Marta slum in Rio de Janeiro, Brazil, Thursday, May 30, 2013. The slum is

 

              People look down at U.S. Vice President Joe Biden as he speaks with journalists during his visit to the Santa Marta slum in Rio de Janeiro, Brazil,  Thursday, May 30, 2013. The slum is
People look down at U.S. Vice President Joe Biden as he speaks with journalists during his visit to the Santa Marta slum in Rio de Janeiro, Brazil, Thursday, May 30, 2013. The slum is among several that are part of Rio's slum "pacification" program to make the city safe ahead of the 2014 soccer World Cup and 2016 Olympics. (AP Photo/Victor R. Caivano)