"Torture is illegal and abhorrent under any circumstances and we have nothing whatsoever to do with it. If we know or believe action by us will lead to torture taking place, we're required by UK and international law to avoid that action, and we do, even though that allows that terrorist activity to go ahead. Some may question this. But we are clear that it's the right thing to do. It makes us strive even harder to find different ways, consistent with human rights, to get the outcome we want," - The head of MI6, Sir John Sawers.

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