An Iranian woman walks past a giant poster showing supreme leader, Ayatollah Ali Khamenei (R) and the founder of Iran's Islamic Republic, Ayatollah Ruhollah Khomeini (L) during a ceremony marking the 36th anniversary of his return from exile on February 1, 2015 at Khomeini's mausoleum in a suburb of Tehran. Khomeini returned from exile in 1979, the trigger for a revolution which spawned an Islamic state now engulfed in a deep political crisis. AFP PHOTO/ATTA KENARE (Photo credit should read ATTA KENARE/AFP/Getty Images)
