Petraeus supports closing Gitmo - Good Grief, another PC victim!
Not so much PC as a Cost/Benefit analysis of putting troops in a position of following orders without any hope of support from The O or anyone in the administration.
Also, the very first time one of those dirtbags at Gitmo decides to whine about so much as feeling mild distress, the witchhunt for My Lai II will break into full gear, every troop who ever served or heard of Gitmo will get served up for the Royal Inquisition that follows, Petraeus knows it and he's just trying to get his people out of the line of fire.
That worked so well for the libs during 'Nam, why not have a sequel?