If Mohammad Javad Zarif had a second career, he would be in a high wire act. Bright lights and swirling crosscurrents are nothing new for the Iranian Foreign Minister, who walked into the auditorium at New York University last Wednesday after nearly a month of sharp rhetoric surrounding a potential nuclear deal. First there was the disagreement between Iran, the United States, and France over what, exactly, they had all agreed upon in a April 2 framework deal to lift economic sanctions in exchange for halting Iran's nuclear weapons program.