(FILES) -- A combo of two file pictures

(FILES) -- A combo of two file pictures shows former Iranian parliament speaker and leader of the National Confidence reformist party, Mehdi Karroubi (L), addressing a press conference in Tehran on October 12, 2008 and former prime minister and opposition leader Mir Hossein Mousavi speaking after voting in the Iranian capital during the controversial presidential election on June 12, 2009. The two main opposition leaders called on April 27, 2010 for protests to mark the first anniversary of the June 12 disputed presidential vote, setting the scene for a fresh showdown with Islamic hardliners. AFP PHOTO/BEHROUZ MEHRI (Photo credit should read BEHROUZ MEHRI/AFP via Getty Images)