The insistence of a Washington state couple that they have a right to build a four-foot concrete wall along 80 feet of the 1,270-mile-long U.S.-Canada boundary in the West has cost a U.S. member of the International Joint Commission his job, according to reports appearing last week in the Canadian news media. If the incident did nothing else, it gave Canadians (prone always to accept the dicta of officialdom) an inkling of how things work on the other side of the border. Apparently, it all started because Herbert and Shirley Ann Leu of Blaine, Wash., couldn't prevent dogs escaping from...