Where did you hear that they had to be fired at twice? Worst I heard in the media was that if the shooter put his gun down and was in a crowd (probably Iraq or Sangin) they could not shoot. Any documentation? The reason I am asking is I am friends with a ROE group.
Listening to the Extortion 17 presser.
49:50 to about 50:20. It is much better if you listen to her from 47:28 on...
http://www.youtube.com/watch?feature=player_embedded&v=rqtJrJ40Cio#!