Fordo Nuclear Facility

Diplomats on Monday confirmed a report that Iran has begun uranium enrichment at an underground bunker and said the news is particularly worrying because the site is being used to make material that can be upgraded more quickly for use in a nuclear weapon than the nation's main enriched stockpile.

Diplomats on Monday confirmed a report that Iran has begun uranium enrichment at an underground bunker and said the news is particularly worrying because the site is being used to make material that can be upgraded more quickly for use in a nuclear weapon than the nation's main enriched stockpile.