US senators urge probe into 9/11 suspect's claims of abuse
'Two US senators who witnessed the questioning of the suspected mastermind of the September 11 attacks have urged officials to investigate his allegations of being badly treated.
Democratic Senator Carl Levin and his Republican colleague Lindsay Graham revealed in a joint statement that they were allowed to watch a hearing for Khaled Sheikh Mohammed at the US military base in Guantanamo Bay via a video link in an adjoining room.
Mohammed confessed to 31 acts of terror or plots including the September 11, 2001, attacks on the United States, according to a transcript of the hearing released by the Pentagon this week.'