The nuclear talks were prolonged until possibly Friday. Photo: Wikimedia.

Iran nuclear talks busted through their second deadline in a week Tuesday, raising new questions about the ability of world powers to cut off all Iranian pathways to a bomb through diplomacy. The talks, already in their 12th day, were prolonged until possibly Friday.

“We knew it would have been difficult, challenging, and sometimes hard,” said Federica Mogherini, the European Union’s foreign policy chief. She said the negotiations would continue despite hitting some “tense” moments, and the State Department declared the current interim nuclear arrangement with Iran extended through July 10.

Read full story at the Associated Press.