Basically that's the problem. It's estimated that there are somewhere between 3-7 million non-military Americans living overseas, but that's less than 3% of the population. If the US had senators and representatives dedicated to those people, we would have some clout, but because we still have to have "residency" in a specific state, we aren't really large enough to have much political clout.

Unfortunately most of the people who live in the US really don't understand the bullshit treatment that people get when entering the country. --It's not as bad for US citizens, but I still get questioned more coming into the US than any other country I've visited.