A spokesman for the Atomic Energy Organization of Iran also says that Tehran is prepared to increase enrichment of uranium beyond what's permitted in the multilateral agreement.
A safety director issued a public warning that buckets of ore may have exposed employees and tourists to unsafe radiation. But being near natural uranium ore is unlikely to cause an unsafe dose.
President Trump and his supporters are again claiming that Hillary Clinton helped Russia gain control of the U.S. uranium supply and endangered U.S. security. The facts don't support this.
Uranium mining on Navajo lands ended in 1986, but the tribe is still suffering profound health effects. The government started cleanup only recently; many of the polluters have gone out of business.
The debate over lifting a ban on uranium extraction pits the Danish territory's lawmakers against environmentalists. It would be a controversial move and one with consequences for Greenland's economic development as well as its political status.