I only brought up citizen because of what you said about targeting US citizens.<quoted text>
The same legal standard applies to foreign nationals too so their citizenship is, to an extent, irrelevant.
Ramzi Yousef, mastermind of the WTC bombing and Pakistani citizen is sitting in a Colorado Supermax prison for the rest of his life. He was captured in Pakistan. That was in '97, before the PATRIOT Act became a tool of Monarchical authority.
Are you now saying we should not utilize drones to go after Al Qaeda?
If we know a terrorist is at a certain location what do you suggest?