Unravelling the Atlantic alliance will be hardest for the UK and hardest of all for the UK's spies

In fact, I doubt it can be done

Alice laughed. “There’s no use trying,” she said: “one can’t believe impossible things.”

“I daresay you haven’t had much practice,” said the Queen. “When I was your age, I always did it for half-an-hour a day. Why, sometimes I’ve believed as many as six impossible things before breakfast.”

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