Demonstrators hold a giant Turkish national flag during a protest at the mausoleum of Mustafa Kemal Ataturk, the soldier-statesman who founded the secular Turkish republic, in Ankara May 17, 2009. Thousands of people in Turkey protested the arrests of university professors and other secularists accused of involvement in an alleged plot to topple the Islamic-rooted government. The protesters gathered in central Ankara on Sunday, waving Turkish flags and carrying posters of Ataturk, chanting: "We are soldiers of Ataturk!" REUTERS/Osman Orsal (TURKEY POLITICS CONFLICT)