11, 2001 attack has said intelligence officers and military forces practiced torture.

The US military detention centre at Guantanamo Bay is the symbol of everything the country has done wrong since the September 11 attacks, according to a bipartisan group of former officials and academics.

The group, which reviewed US detention and rendition practices, has concluded that US interrogators committed torture while questioning detainees, and there's no proof the torture gave authorities any information to prevent future attacks.

Seasoned interrogators have confirmed the report finding that harsh interrogation techniques were ineffective and there was no rational for their use, whether practical or moral.

Al Jazeera's Rosiland Jordan reports from Capitol Hill, Washington DC.