Europe Vows to Defend Its Interests in Iran
A transatlantic diplomatic tussle appears to be looming after European leaders pledged to defend their countries' commercial interests in Iran, following U.S. President Donald Trump's decision to withdraw from the 2015 nuclear deal with Tehran. Fellow signatories Russia and China also said they would stick with the accord. Washington says it will begin phasing in sanctions on Iran in the coming months. Henry Ridgwell reports.