EDITORS' NOTE: Reuters and other foreign media are subject to Iranian restrictions on their ability to film or take pictures in Tehran.

International Atomic Energy Agency IAEA Director General Mohamed ElBaradei (C) arrives at Imam Khomeini International airport, 35 km (22 miles) south of Tehran October 3, 2009. ElBaradei arrived in Tehran on Saturday to pin down an Iranian pledge, made at talks with big powers on Thursday, to open a newly revealed uranium enrichment site to inspections. REUTERS/Morteza Nikoubazl (IRAN POLITICS ENERGY)