Could you torture someone with no memory?

Strange and random question: if someone can't form memories is it ethically ambiguous to torture them? Hypothetically at any moment you could stop and, assuming there is no lasting physical harm, it may as well have never happened.

So would that excuse it? If we could perfect memory wiping technology would that suddenly give us a free pass morally to try and interrogate people by any means necessary?

via International Skeptics Forum http://ift.tt/1jmXVMU