Secret nukes

Tehran

Iran has been conducting a secret program to enrich uranium and plutonium—and lying about it, the International Atomic Energy Agency said in a harshly worded report released this week. The U.N. agency said that, so far, there was “no evidence” that Iran had started to build a nuclear bomb. But it said Iranian scientists and diplomats had engaged in a “pattern of concealment” for decades, initially denying that they had been working on banned techniques and then admitting it only when confronted with intelligence evidence.