A police helicopter flies over a large protest in downtown Rio de Janeiro, Brazil, Monday, Nov. 26, 2012. Thousands of demonstrators gathered in downtown Rio de Janeiro for a march aga

 

              A police helicopter flies over a large protest in downtown Rio de Janeiro, Brazil, Monday, Nov. 26, 2012.  Thousands of demonstrators gathered in downtown Rio de Janeiro for a march aga
A police helicopter flies over a large protest in downtown Rio de Janeiro, Brazil, Monday, Nov. 26, 2012. Thousands of demonstrators gathered in downtown Rio de Janeiro for a march against legislation that officials here insist would strip this oil-producing state of much of its income from the energy sector. The protesters are calling on President Dilma Rousseff to veto the measure. (AP Photo/Victor R. Caivano)