1) Mahar Arar was detained in the US and tortured in Syria based on mistaken intelligence from Canadian authorities. He was held in grave-like cells and tortured for over 10 months before being released without charge.
2) Following 9/11, the US began secretly detaining and torturing terrorist suspects around the world in an attempt to gather intelligence. However, information obtained through torture is unreliable and can lead to misguided wars based on false confessions.
3) While counterterrorism methods changed after 9/11 with less regard for human rights, torture has proven ineffective for intelligence gathering and tends to radicalize detainees. Non-abusive interrogation techniques are more likely to gain cooperation and reliable information.