An activist holds a placard depicting a picture of government critic Mohamed Brahmi, who was gunned down by militant gunmen last year, in Habib Bourguiba boulevard in downtown Tunis January 14, 2014. Thousands of Islamist and secular Tunisians marked the third anniversary of autocrat Zine el-Abidine Ben Ali’s downfall on Tuesday, celebrating in the closest the Arab world has to a model transition to democracy. Ben Ali’s flight from the country on Jan. 14, 2011 inspired uprisings in Libya, Egypt, Yemen and Syria. But while those countries remain in turmoil or outright war, Tunisia’s Islamist Ennahda party will compete for power later this year with its secular opponents at the ballot box, not on the street. REUTERS/Anis Mili (TUNISIA – Tags: POLITICS ANNIVERSARY)