Protestors hold crosses during a march against police violence in Rio de Janeiro, April 15, 2005. The march was to demand justice for several killings by "extermination groups" within the police force, most recently the massacre of at least 29 people. (Australfoto/Douglas Engle)
Students and staff at the Anhembi Morumbi University in Sao Paulo, Feb. 1, 2006.
