Iranian Nukes and the CIA

Please tell me this story isn't true...

Via Mercury Rising (in Avedon Carol's comments)

In The LA Times,

WASHINGTON — In a clumsy effort to sabotage Iran's nuclear program, the CIA in 2004 intentionally handed Tehran some top-secret bomb designs laced with a hidden flaw that U.S. officials hoped would doom any weapon made from them, according to a new book about the U.S. intelligence agency.

But the Iranians were tipped to the scheme by the Russian defector hired by the CIA to deliver the plans and may have gleaned scientific information useful for designing a bomb, writes New York Times reporter James Risen in "State of War: The Secret History of the CIA and the Bush Administration."

Could this possibly be true? Is the CIA really this stupid?