In fact, torture is useless for anything but getting your jollies off, if you're one of those warped individuals who is inclined to sadism.
Torture as a method of interrogation is pointless.
However, the threat of torture is an extremely effective method of interrogation. Now why would we want to make it impossible to put the fear of God in those who plot to murder our people while our people sleep in their beds?
It sounds to me like AI ceased to be a apolitical group concerned about human rights and to all intents and purposes became just another radical left mouthpiece spewing manure. Kind of like the NAACP.