There has been much said about the legality of a closed loop for PTSD exams strictly by VHA’s finest. This would seem to be the ammo against.

http://veteranclaims.wordpress.com/2010/09/20/federal-circuit-gardin-v-shinseki-no-2009-7120-usc-5125-diagnosis-of-ptsd-stressor/

I’d say the Fat Lady has yet to sing her aria.