Before we all get up in arms about this, I feel a little clarification is in order:
Administration lawyers found it is lawful to kill an American citizen if a “high-level” government official believes the target is an operational leader of al Qaeda who poses “an imminent threat of violent attack against the United States” and if capture is infeasible, according to a newly disclosed Justice Department document.
So not just any terrorist organization but specifically Al-Qaeda member, who also has to be high enough to warrant such a strike and cannot be captured in a "timely manner", I assume is the unsaid addition to that sentence.
Yeah, it's bad but not quite "let's gas the terrorists, who cares if we kill hundreds of civilians"-Russian or "let's just indiscriminately shoot and bomb civilians, some of them are probably terrorists"-Syrian&Libyan level.