Anwar al Awlaki and another US citizen were killed while riding in a car in Yemen . Both fit the outline in the memo . They were a threat and capture was unlikely . Awlaki's 16 year old son who had not seen his dad in two years was killed by a drone strike a few days later while sitting around a campfire with several of his cousins . That US citizen was no more a threat to this country than my son was when he was 16.