Sterling first came to the media’s attention when in 2003 he blew the whistle on a botched CIA operation called Operation Merlin, telling the Senate Intelligence Committee staff that the operation had ended up revealing nuclear secrets to Iran. When in 2006 James Risen published a book that discussed, inter alia, this amateurish cowboy operation, the Department of Justice focused on Sterling as the suspected source.

In court, the federal prosecutors relied almost entirely on Risen’s phone and email logs, which reportedly demonstrated that the two men had been in contact up until 2005. But the prosecutors did not provide the content of those communications even though the FBI was listening in on some of them. Risen has claimed that he had multiple sources on Operation Merlin, and Sterling has always denied being involved.

Jeffrey Sterling was not permitted to testify in the trial on his own behalf because he would have had to discuss Operation Merlin, which was and is [2016] still classified.