the CIA had infiltrated the nuclear supply network of A. Q. Khan by securing the allegiances of a few of his key European suppliers and turning them into moles. From them, the CIA learned that Khan had sold the designs for Pakistan’s P-1 centrifuge—the design stolen from Urenco—to Iran and had also sold prototypes for its more advanced P-2 centrifuge to Libya. If Khan sold the P-2 design to Libya, Heinonen reasoned, he must have given it to Iran as well. Iran hadn’t mentioned the advanced centrifuge in its detailed history, but if it did possess the centrifuges, then it was possible that
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