Saif al-Islam, son of Libyan leader Muammar Gaddafi and operator of an unhinged Twitter account, gestures as he speaks during an address on state television in Tripoli, in this still image taken from video, February 20, 2011. Saif al-Islam said Sunday the army stood behind his father as a "leader of the battle in Tripoli" and would enforce security at any price. His comments were the first official reaction from the Libyan authorities since the unrest began. Photo: Libyan TV