The quotes are from Irene Khan, general secretary of AI:
http://www.guardian.co.uk/humanrights/story/0,7369,1492004,00.html "The USA, as the unrivalled political, military and economic hyperpower, sets the tone for governmental behaviour worldwide," she said. "When the most powerful country in the world thumbs its nose at the rule of law and human rights, it grants a licence to others to commit abuse with impunity."
...
"The detention facility at Guantánamo Bay has become the gulag of our times, entrenching the practice of arbitrary and indefinite detention in violation of international law," she said. " Guantánamo evokes memories of Soviet repression."
...
The US government's use of dubious terms such as environmental manipulations, stress positions and sensory manipulation to describe the treatment of prisoners amounted to "cynical attempts to redefine and sanitise torture", she said. She also criticised what she said was the UK's acceptance of intelligence derived by torture in certain circumstances.
"To say in a 21st-century democracy that torture is acceptable is to push us back to medieval ages," she warned.