[endogui]

I mostly find your argument convincing, but keep in mind that there is no unitary "US government": most charges are under state law. This means that although the national government can know where you are down to the apartment number, you can be (legally) completely unreachable to the state that has ordered you to trial. The solution may be to just lock up the accused more liberally than in Europe, but I'm curious how Europe handles this problem in the Shengen zone.

[kstenerud]

You just extradite them, same as the American states do when someone flees to a different state.

I've yet to hear of someone being "untouchable" in another Shengen country. Are American state criminal laws that incompatible with each other?

[allendoerfer]

Since you are the second poster to spell it wrong: It's Schengen.

[isthisnametaken]

The European Arrest Warrant sorts a lot of it out.

https://en.wikipedia.org/wiki/European_Arrest_Warrant