On August 4, 2005 American Israel Political Affairs Committee (AIPAC) operatives Steven J. Rosen and Keith Weissman were arrested on charges relating to espionage on behalf of Israel.
This had a lot to do with Iran. It followed the arrest in May 2004 of Larry Franklin, the Pentagon’s top Iran analyst by the FBI after he had been caught turning over secret documents (including ones pertaining to Iran) to Israeli Embassy staffers including Mossad Station Chief Naor Gilon.