Actually I made almost the same comment earlier; however, you are missing something. The person targeted doesn't need to be an enemy combatant; they just need to be a non-US citizen. A combatant, is a person that at the time is engaged in physical fighting -firing a weapon, carrying a RPG. A non-combatant would be someone who makes Propaganda videos, or who once was a fighter but at that particular time is not engaged in a fight. So say this non-US citizen Propagand Video creator is in a cafe in NYC, the government or one of its agencies or whatever has the authority to kill him with a drone; and with him, kill everybody else in the blast radius, and that is completely just fine with everybody.
So, it is much worse than what you were saying.