Environmental samples have been taken at a sensitive military site in Iran, the head of the UN nuclear watchdog said on Monday, citing "significant progress" in its investigation of Tehran's past activities. Such sampling is usually done by experts of the UN's International Atomic Energy Agency. But IAEA chief Yukiya Amano says that Iranians carried out that part of the probe at Parchin. The transfer appeared to be part of a confidential draft agreement with the agency that allows Iran to gather its own samples. Inspecting the Parchin military site is a crucial part of the International Atomic Energy Agency's...