First, we hear this before every summer Olympics....Greece, China....Brazil. I will not let the press lead me around. I was just there and the beaches and water are fantastic. Is there pollution? Of course....these are urban areas.
Second, Dilma Rousseff is a communist.....do you think she knows how to run a capitalist economy? Brazil is mired in corruption, kickbacks and crime. The good news is that the younger generations are rejecting this and looking to have real ethics for business and government.
Some friends (married couple) went to Brazil a few years ago. They took a walk along the beach and started noticing little bits of toilet paper everywhere. Needless to say, they were pretty grossed out.