“The removal of the books is occurring nationwide, part of a long-delayed, post-Sept. 11 federal directive intended to prevent radical religious texts, specifically Islamic ones, from falling into the hands of violent inmates.” The removal was ordered “out of a concern that prisons had been radicalized by inmates who were practicing or espousing various extreme forms of religion, specifically Islam, which exposed security risks to the prisons and beyond the prisons to the public at large.”