[Tehran, July 7. Image via Getty]

An Iranian woman adjusts her headscarf as smog covers the Milad telecommunications tower in northwestern Tehran on July 7, 2009. Iranian opposition leaders called for the immediate release of hundreds of people arrested in a crackdown on post-election protests and denounced the 'brutal attacks' by security forces. AFP PHOTO/BEHROUZ MEHRI (Photo credit should read BEHROUZ MEHRI/AFP/Getty Images)