Quoting myself, but still responding to Jiigzz, the "Global Safety Index" you referenced is actually the "Global PEACE Index," and, from that same Wikipedia page:
Yes, the US has insane military spending, which may make the US less "peaceful" but not actually less "safe" for people living there. Cherry picked data is cherry picked, or just completely irrelevant to the discussion. Again, the US is clearly not the safest country, not close really, but saying it's less safe than Brazil is just not supported by any actual SAFETY data. Does the US CAUSE more crime/violence in the world than Brazil? That's not really this discussion, is it?