President Obama Reportedly Told His Aides That He's "Really Good at Killing ... - Slate Magazine (blog)

Under Obama, U.S. drone operators began practicing "signature strikes," a tactic in which targets are chosen based on patterns of suspicious behavior and the identities of those to be killed aren't necessarily known. (The administration counts all "military-age males" in a strike zone as combatants.) Furthermore, the disturbing trend of the "double tap"—bombing the same place in quick succession and often hitting first responders—has become common practice. Needless to say, a lot of innocent people have been killed, along with combatants.