IMHO Catch-all Internet surveillance is a drug that no country's intelligence or law-enforcement apparatus can stay away from.
I'm based in India and am under no illusion that my government - given the chance or the technical capability - will attempt to secretly monitor its own citizens in a manner far worse than possibly the US.
So while I distrust the US, I also distrust India when it comes to any kind of "control" over the Internet. And so I hope, will Brazilians.
As users we ought to take our own independent and personal choices on how best to safeguard our online lives.