I wonder if POTUS has to at least sign all the kill orders.
EDIT FOLLOWS:
The problem is (independently) verifying that the targeted person was a combatant and in a war against USA. If anybody can be a combatant, CIA can kill anybody. See the following, regarding the Obama presidency:
> It is also because Mr. Obama embraced a disputed method for counting civilian casualties that did little to box him in. It in effect counts all military-age males in a strike zone as combatants, according to several administration officials, unless there is explicit intelligence posthumously proving them innocent.
The obvious questions are:
* Does belonging to Al-Qaeda or similar make you eligible for a drone strike? I don't really think of (potential) terrorists as combatants.
* What about another organization designated as "terrorist"? The executive branch unilaterally puts organizations and people on that list. See https://en.wikipedia.org/wiki/United_States_Department_of_St...
* What oversight and control should there be over the decision to kill someone?
Another interesting point is that it seems that only a fraction of persons killed in drone strikes were intended as targets: https://theintercept.com/drone-papers/the-assassination-comp...