An Egyptian woman attends Friday prayers before a rally in Tahrir Square to denounce the presidential candidacies of Hosni Mubarak-era officials, including that of his former spy chief in Cairo, Egypt, Friday, April 13, 2012. Supporters of the country's most influential political group, the Muslim Brotherhood, along with ultraconservative Salafis and other Islamists packed the capital's Tahrir Square, which was the epicenter of the uprising that ousted Mubarak a year ago. (AP Photo/Khalil Hamra)