Uranium Enrichment, Nuclear Weapon | featured news

Iran is increasing the number of advanced uranium enrichment centrifuges installed at its Natanz underground plant, despite tightening international sanctions aimed at stopping Tehran's nuclear progress, diplomats said on Wednesday.

Pyongyang’s warning that it will step up its uranium enrichment comes two days after the country’s leader called for expanding his country’s nuclear arsenal both in “quality and quantity.”

Iran will go on refining uranium "with intensity" and the number of enrichment centrifuges it has operating will rise substantially in the current year, the country's nuclear energy chief was quoted as saying on Wednesday.

Talks meant to nudge Iran toward meeting U.N. Security Council demands to stop uranium enrichment collapsed Saturday, with Tehran shrugging off ...