Then we disagree. American soil is the big difference. I mentioned the foreign thing in a later post
I am assuming we will arrest them if they are in the US. Or for that matter, any nation in Europe, and several other regions. There may be some extreme circumstances in which we might use drones on US soil, but then that is really not a change from the way we have done things in the past. A drone is just another military weapon, and we have used military weapons against US citizens in extreme circumstances throughout our history.
But in remote regions of Africa, the Arabian peninsula, etc..., I don't have a problem with it. If an arrest warrant makes people feel better, then tape it to the nose of the Hellfire missile.