There will always be legal loopholes that allow federal prosecutors to try someone in a state in which they never set foot, and they'll always have the funds to put together a pro team that's smart enough to convince a jury that you're worse than Hitler because they're the friggin' federal gov't, and even if you aren't already bankrupt, they can freeze your accounts so you can't pay your own team.

The fundamental problem is their incentive for doing this, which is based entirely on convictions and time behind bars, and has nothing to do with fairness. I don't claim to know what the _right_ basis for prosecutor incentive is, but I do know that if it's throwing people in jail, we end up with a lot more people in jail (which has happened/is happening in the US).