quote:

"I actually had a take ... which is we’re in the future, and drones have been replaced by robots and are being used all over the world for foreign policy and war," Padilha explained. "Kind of like instead of sending soldiers to Iraq, you send robots to Tehran."

With machines at war instead of humans, Padilha posits that would eradicate any "political pressure at home to end wars, because the reason why the Vietnam War ended is because soldiers were dying. When you take the soldiers away and you have robots, that opens a can of worms."