content: Just because the government invented it doesn't mean they control it. That's like saying the mathematician who invented encryption (what Tor is based on) can understand everything you encrypt. It was invented by the Navy because it's really really hard to crack. Also, not a lot of people have gone to jail over Tor. There have certainly been a few major major busts, and a few isolated incidents, but it's very uncommon especially considering how much illegal activity goes on.