Iran's defeated presidential candidate Mirhossein Mousavi waves at the end of his news conference in Tehran in this June 12, 2009 file photo. Mousavi's credentials as a loyal servant of Iran's revolution may help explain why he has escaped arrest for leading protests against an election he says was stolen to keep President Mahmoud Ahmadinejad in power. REUTERS/Ahmed Jadallah/Files (IRAN POLITICS ELECTIONS CONFLICT)
REUTERS/AHMED JADALLAH