The implications of the reporting I have seen on this 'new' Iranian issue were that either the intel gathered was flawed or it was misinterpreted or ignored. As JKS pointed out, in the last 30 years there has been a change of emphasis in US intelligence gathering, at least. That change has brought to the fore mechanisms that are not as reliable as those formerly considered primary. The introduction of an additional level through which information has to pass could potentially be the 'bad' element.
I wouldn't say "not as reliable"; I'd say "differently reliable" or reliable for different matters.
Electronic interepts, wire taps, and other forms of ELINT are great -- for specific purposes and goals. But it sucks for others. Same thing with satellite photos; they'll see things you'll never get someone close enough to look at, without relying on someone else telling you.
But HUMINT -- spies -- is equally important. A spy can tell you what you can't see, and can't overhear. Or a spy can tell you whether what you saw or heard is significant...
But spies can be misled, too. I really believe that one of the reasons there was so much intelligence, for so many years, suggesting that Sadam Hussein was close to having WMD is simple; his own people lied to him. After all, if someone's got a history of killing the bearer of bad news, there's a damn good chance that you're gonna spin whatever you tell him into good news!