The Telegraph reports the following:

The Archbishop of Canterbury, Dr Rowan Williams, yesterday urged America to recognise that terrorists can "have serious moral goals".

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Dr Williams said that no government should act as its own judge on whether to launch military action against a rogue state.
"Violence is not to be undertaken by private persons," he said. "If a state or administration acts without due and visible attention to agreed international process, it acts in a way analogous to a private person. It purports to be judge of its own interest."