An Iranian supporter of former prime minister and presidential candidate, Mir Hossein Mousavi, holds his poster in a street in northern Tehran, early June 5, 2009. Several analysts predict a high urban youth turnout in the June 12 presidential election in favour of Mousavi, unknown to many young Iranians but who is passionately promoted by Ahmadinejad's reformist predecessor Mohammad Khatami. AFP PHOTO/BEHROUZ MEHRI (Photo credit should read BEHROUZ MEHRI/AFP/Getty Images)