A 2007 report by the Homeland Security Institute called double taps a "favorite tactic of Hamas" and the FBI considers it a tactic employed by terrorists.

UN special rapporteur on extrajudicial killings Christof Heyns said that if there are "secondary drone strikes on rescuers who are helping (the injured) after an initial drone attack, those further attacks are a war crime."

The U.S. refuses to discuss the merits of its overtly covert drone program, but the reports featured on @dronestream clearly document that U.S. hellfire missiles have intentionally targeted funerals and civilian rescuers.