Islamist opposition leader Hassan al-Turabi talks to reporters after his meeting with U.S. envoy Scott Gration in Khartoum April 1, 2010. U.S. envoy Scott Gration began crisis talks with political leaders in Sudan on Thursday after Arman pulled out on Wednesday from the upcoming presidential election, less than two weeks before voting, citing insecurity in Darfur and fears of electoral fraud, consequently threatening Sudan's tortuous reconciliation process. REUTERS/Mohamed Nureldin (SUDAN - Tags: POLITICS ELECTIONS)