Tehran also notified the IAEA last week that it was installing more advanced centrifuge machines at its uranium-enrichment facility in the city of Natanz, potentially providing Iran the ability to triple its nuclear-fuel production at the site.

WSJ: Iran Says It Is Set for Nuclear Talks, but West Is Skeptical

Ore from the mine is processed at Jaduguda into a substance called U308 - commonly known as yellow cake - and then sent to the Nuclear Fuel Complex in the southern city of Hyderabad, where uranium fuel rods are produced.

CNN: NUCLEAR FALLOUT

What did happen was that the Enola Gay, an American B-29 bomber, dropped a uranium-based atomic bomb on the Japanese city of Hiroshima.

FORBES: The Nuking Of Japan

As the Cold War heated up in the 1950s, Tuba City experienced a bit of prosperity during a uranium mining boom in the area.

FORBES: One Horn That Tuba City, Ariz., Doesn't Toot

At the talks in the Kazakh city of Almaty they are asking Tehran only to greatly limit its production and stockpiling of uranium enriched to 20 percent, which is just a technical step away from weapons-grade uranium.

NPR: Iran Nuke Talks Open, EU Asks Tehran To Compromise