Growing distrust results in more security measures even among the military
Growing concern over violence by U.S. troops in Afghanistan along with a security breach resulted in some security measures for Defense Secretary Leon Panetta as soliders were disarmed:
http://www.youtube.com/watch?feature=player_detailpage&v=D5cPrgeFdV8
http://www.telegraph.co.uk/news/worldnews/asia/afghanistan/9144379/Soldiers-asked-to-disarm-during-Leon-Panetta-speech.html
Some say this is what Howard Stern's nephew had to say about it:-)