A Washington priest talked his way last month into meals, drinks, and an overnight stay at the barracks of the British soldiers who protect Queen Elizabeth II, prompting an ongoing Army security review in the U.K. British media reported last week an intruder claiming to be a priest gained entry April 27 to the Victoria Barracks of the Coldstream Guards, who protect the British monarchy at Windsor Castle and Buckingham Palace. The intruder told soldiers he was friends with a unit chaplain, and had served in Iraq. He was soon invited for drinks and dinner in the Officers’ Mess, and...