i st >> i supported 2,400 close air support missions and 200 plus enemy kills. i asked to see civilian casualties. nobody would give that to me. >> i killed 13 people with missiles. three of them were enemy combatants. the other ten people, i don't know who they were. >> reporter: a critic would say -- what did you think you were going to do you were in the air force, a military organization that fires from afar? >> okay. integrity first. service before self. excellence in all we do. if we don't have integrity of what we are doing. what are we doing. >> there is no honor in drone warfare. >> this fight is above honor. i think it is without ra proeep. >> some say the is war by video game? >> it is so far from a video game. it is laughable, when that comparison gets used. >> what about the cost to civilians? >> war is an ugly thing. but i can guarantee you that every effort is made to make sure that civilians are not

president obama's first so-called kill list. gone. including seven potential successors to al qaeda leader osama bin laden. all seven killed by drones. >> the organization has been hollowed out in many respects. >> reporter: it's because drones are so effective that we use them more than we should critics say. brandon bryant, sean westmoreland and lisa ling among a dozen and former air force and cia operators and technicians speaking out against drones. they're here with their lawyer because they fear prosecution for breaches of security as they describe the u.s.'s drone use as immoral. >> being able to press a button from the opposite side of the world and kill another human being or multiple human beings at once is way too easy. >> reporter: is it video game warfare? >> it is. i mean the skill set that you use for video games is the exact same skill set you have when operating a drone. >> i have actually deployed overseas and the drone program for me was worse. i st >> i supported...