In this March 3, 2005, file photo, a workman dusts the floor at the Central Intelligence Agency headquarters in Langley, Va. The American Civil Liberties Union has filed a lawsuit challenging a pre-publication review required for people who have had access to government secrets. The CIA says the pre-publication review is necessary to protect national security and protect former employees from legal liability. Timothy Barrett, a CIA spokesman, said the agency does not comment on pending litigation." (AP Photo/J. Scott Applewhite, File) **FILE**
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