I found this.
Homeland Insecurity: After Boston, The Struggle Between Liberty and Security
May 01, 2013
But the new guidelines also featured added restrictions on an especially sensitive area of FBI counterterrorism work: mosques. Under the new rules, agents could no longer enter a religious organization without special new approvalin some cases directly from FBI headquarters. Moreover, according to still-classified sections of the new rules made available to Time, any plan to go undercover in a place of worshipa tactic employed by the bureau after Sept. 11, 2001, that drew protests from Muslim Americans and at least one lawsuit from a California mosquewould now need special approval from a newly established oversight body at Department of Justice headquarters called the Sensitive Operations Review Committee, or SORC.
How do I turn my property into a religious organization?