American-born Taliban fighter John Walker Lindh is seen in an undated file photo obtained from a religious school where he studied for five months in Bannu, near Islamabad, Pakistan. U.S. District Judge Jane Magnus-Stinson has scheduled a trial to begin Aug. 27, 2012, for Lindh's lawsuit asking permission to hold daily group prayers in a highly restricted cell block at a federal prison in Terre Haute, Ind.. The site hasn't been determined. (AP Photo/File)