Visiting the U.K. over the past week, I realized for the first time that Britain might actually leave the European Union. Of course, it has talked about this eventuality, on and off, almost since it joined -- but for years the constant whining could be dismissed as so much background noise. Things have changed. Attitudes are hardening, and by promising an “in or out” referendum on EU membership after the next election, Prime Minister David Cameron may have put the country on a course that will force it to choose. If the referendum Cameron promises for 2017 were put to voters tomorrow, the U.K. would probably leave. ... (full story)