IAEA chief calls for clarity on disputed section of Iran nuclear deal International Atomic Energy Agency (IAEA) Director General  IAEA  reacts during an interview with Reuters at the IAEA headquarters in Vienna, Austria September 26, 2017 VIENNA, Reuters , SEPTEMBER 26, 2017  - The U.N. nuclear watchdog’s chief urged major powers on Tuesday to clarify a part of their nuclear deal with Iran dealing with technology that could be used to develop an atom bomb, an area Russia said the agency should leave alone. The 2015 pact between six major powers and Iran restricts its nuclear activities in exchange for the lifting of sanctions against the Islamic Republic. Compliance with those curbs is being verified by the International Atomic Energy Agency. IAEA Director General Yukiya Amano has defended the deal as a major step forward while declining to comment specifically on criticism of it by the administration of U.S. President Donald Trump, who has c...