So Long, Farewell, Auf Wiedersehen . But Does the E.U. Really Want Britain to Leave?

In the 40 years since Britain joined the Common Market, it has managed to infuriate most of its European partners at one point or another — and sometimes all of them simultaneously. Margaret Thatcher famously brought European decisionmaking to a halt in 1984 until Britain was granted a rebate she deemed satisfactory on its contributions to the budget, and there have been many other flaming rows before and since, over issues ranging from fishing to finance. So it's not surprising, at a time when Prime Minister David Cameron is openly raising the possibility of a British exit from the E.U., that...