CNN 's David Petraeus goes inside main Iraq detention facility in Iraq . Prison holds 2,000 inmates ; 19,000 are suspected Islam loyalists . Inmates undergo programs to teach them moderate Islam . Only seven have been returned to the facility , according to Stone . Marine general : `` This is the battlefield of the mind ''
CNN 's David Petraeus goes inside main Iraq detention facility in Iraq . Prison holds 2,000 inmates ; 19,000 are suspected Islam loyalists . Inmates undergo programs to teach them moderate Islam . Marine general : `` This is the battlefield of the mind ''