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Ayatollah Ali Khamenei

Iran's dangerous game

Iran's dangerous game

With less than a month to go before negotiators for the U.S and its partners are supposed to reach a deal limiting Iran's nuclear program, the talks appear to have stalled over Tehran's resistance to allowing inspectors to visit Iranian military bases and other sites to verify compliance with any agreement. A robust inspection regime has been key to the talks from the beginning in order to ensure Iran doesn't secretly try to build a weapon. If Tehran starts backing away from that bedrock principle now, it could torpedo months of difficult negotiations and most likely scuttle any chance of an accord.

Why Iran's negotiators have chosen now to put up this roadblock is a mystery. One...