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Q: Would you cut your leg off, with a hacksaw, if it meant finding a cure for cancer.
Q: Would you dismember your mother, or spouse, or child, to point of death if it meant solving global warming and the certain rescue of the human race.
These are questions anyone can answer for him/herself as a moral/ethical exercise, but they have no relation whatsoever to the current practice of torture here or elsewhere in the world. They are totally unrelated questions.