Smoldering Iran nuclear crisis risks catching fire

WASHINGTON/PARIS/DUBAI – Even as the United States and its European allies grapple with Russia’s invasion of Ukraine and rising tensions with China, the smoldering crisis over Iran’s nuclear program threatens to reignite.

In a sign of European concern, Britain, France and Germany have warned Iran they would trigger a return of U.N. sanctions against Tehran if it enriched uranium to the optimal level for a nuclear weapon, three European officials said.

The threat, made last year in a previously unreported letter sent by the countries’ foreign ministers, underscores Western fears that Iran could produce bomb-grade uranium of 90% purity.