Egyptian politician Ayman Nour leaves after a news conference to announce he has presented his candidacy papers to the Higher Presidential Elections Commission (HPEC), in Cairo March 29, 2012. Egypt's military rulers on Wednesday lifted a ban preventing Nour from running for the presidency, opening the way for a presidential bid by the liberal politician who came a distant second to Hosni Mubarak in a 2005 election. REUTERS/Stringer (EGYPT - Tags: POLITICS ELECTIONS)