Kerry Meets Zarif With Nuclear Agreement Nearing Finalization

U.S. Secretary of State John Kerry and Iranian Foreign Minister Mohammad Javad Zarif meet Saturday in Vienna, aiming to bridge the final gaps hobbling a nuclear accord before time runs out on their self-imposed deadline.

Three months after Iran and world powers reached a framework deal in Lausanne, Switzerland, they continue to wrangle over details. Diplomats have predicted talks will run past the June 30 deadline and that foreign ministers from the other negotiating countries -- China, France, Germany, Russia and the U.K. -- will need to join in.