Iran is threatening to walk away from nuclear talks if Congress approves new sanctions against Tehran. In an interview with Time, Iranian Foreign Minister Mohammad Javad Zarif said that “the entire deal is dead” if Congress passes new sanctions, regardless of whether they would only be triggered by the failure of the talks. “We do not like to negotiate under duress,” Zarif said. “And if Congress adopts sanctions, it shows lack of seriousness and lack of a desire to achieve a resolution on the part of the United States.” Lawmakers angry about the six-month deal struck with Iran have said...