Files on Dirty War. joint communiqué CELS/NSA Files on Dirty War. http://nsarchive.gwu.edu/NSAEBB/NSAEBB73/ Files on Dirty War. joint communiqué CELS/NSA http://nsarchive.gwu.edu/NSAEBB/NSAEBB73/ joint communiqué CELS/NSA Files on Dirty War. Files on Dirty War. joint communiqué CELS/NSA Files on Dirty War. joint communiqué CELS/NSA Files on Dirty War. Files on Dirty War. http://nsarchive.gwu.edu/NSAEBB/NSAEBB73/ coined a posteriori in the United States the National Security Archive