Plot holes?

I'm not from the military but some things in this movie look very odd to me:
1) Even after cooperation with the CIA was agreed on, the drone operators keep arguing and questioning the CIA almost at every turn. I wonder if this is realistic. You either agree to cooperate or you don't, but this method seems like Chinese water torture
2) If what the operators are doing is considered a war crime (as the woman soldier states once), are they immune from prosecution just because they were following orders? I doubt it. So either these things don't happen, or they're not considered war crimes. Otherwise we'd be hearing about it in the media
3) How likely is it that a soldier who was demoted to "surveillance" can get access to the controls of a bomb and actually use it to strike a target?
I will be glad for any inputs from knowledgeable people. Personally I found these really hard to believe