Nuclear negotiations between Iran and the rest of the world powers began Tuesday in Geneva—the first since president Hassan Rouhani took office in August. In fact, in a true sign of the change in Tehran, Iran’s talks will be led by Foreign Minister Mohammad Javad Zarif, a U.S.-educated diplomat who is a big user of Facebook to communicate. Temper your expectations for a breakthrough, but Zarif did say he hoped a “roadmap” could be agreed upon to end the decades-long nuclear dispute. The P5+1 group—the U.S., Britain, China, Russia, France, and Germany—have said that they will lift some of the sanctions on Iran if Tehran agrees to specific steps on making nuclear arms.