We're not sure if this is proof of more or less media transparency:

April 24, 2006 — A former CIA officer who was sacked last week after allegedly confessing to leaking secrets has denied she was the source of a controversial Washington Post story about alleged CIA secret detention operations in Eastern Europe, a friend of the operative told NEWSWEEK. The fired official, Mary O. McCarthy, "categorically denies being the source of the leak," one of McCarthy's friends and former colleagues, Rand Beers, said Monday after speaking to McCarthy. Beers said he could not elaborate on this denial and McCarthy herself did not respond to a request for comment left by NEWSWEEK on her home answering machine.

Secrets of the CIA [Newsweek]