Rached Ghannouchi, the head of the moderate Islamist Ennahda party, waves as he arrives at a polling station during an election in Tunis October 23, 2011. The election, the first free vote in Tunisia's history, will set a standard for other Arab countries where uprisings have triggered political change or governments have tried to rush reforms to stave off unrest. REUTERS/Jamal Saidi (TUNISIA - Tags: POLITICS ELECTIONS)