A demonstrator sits next to a vandalized sign with an image depicting Brazil's President Dilma Rousseff...
A demonstrator wearing a Guy Fawkes mask sits next to a vandalized sign with an image depicting Brazil's President Dilma Rousseff during a protest against the Confederation's Cup and the government of Rousseff outside the national congress in Brasilia June 17, 2013. Tens of thousands of demonstrators marched through the streets of Brazil's biggest cities on Monday in a growing protest that is tapping into widespread anger at poor public services, police violence and government corruption. Protesters are using the Confederation's Cup as a counterpoint to amplify their concerns. REUTERS/Ueslei Marcelino (BRAZIL - Tags: POLITICS CIVIL UNREST SPORT SOCCER)