A U.S. envoy is challenging Iran to disprove suspicions it worked secretly on nuclear arms by throwing open a military site to a probe by U.N. inspectors.
He also is urging Tehran to shut down a fortified bunker used to enrich uranium to a 
level that can allow the radioactive substance to quickly be turned into the core of nuclear arms.
Robert Wood spoke Tuesday to the 35-nation board of the International Atomic Energy Agency.
Tehran says all of its atomic activities are geared toward making nuclear fuel or medical research. But international concerns have grown because of Iran’s uranium enrichment activities. The IAEA also says it has mounting evidence that the Islamic Republic has secretly worked on a nuclear arms program — something Tehran denies.
Source: The Washington Post