sentences:  At that point, the Nosenko issue evolved into an interservice confrontation.To the CIA, Nosenko was not a genuine KGB mole because he was found to have lied about his grade and his recall orders to the USSR.But the FBI accepted him as genuine, as agreeing that Nosenko was a KGB plant would consequently compromise the credibility of Fedora, the only Soviet source corroborating Nosenko's story.