A Iranian riot-police officer sprays tear-gas at a supporter of defeated Iranian presidential candidate Mir Hossein Mousavi attacking him with a police stick during riots in Tehran on June 13, 2009. Hardline incumbent Mahmoud Ahmadinejad won a crushing victory in Iran’s hotly-disputed presidential vote, according to official results that triggered mass opposition protests. AFP PHOTO/OLIVIER LABAN-MATTEI (Photo credit should read OLIVIER LABAN-MATTEI/AFP/Getty Images)