Candidate Romney's visit to England and the Olympics produced this interchange:Mr. Romney: "'The stories about the private security firm not having enough people, the supposed strike of the immigration and customs officials, that obviously is not something which is encouraging,' Mr. Romney said in an interview with NBC on Tuesday."British prime minister, David Cameron: "'We are holding an Olympic Games in one of the busiest, most active, bustling cities anywhere in the world. Of course its easier if you hold an Olympic Games in the middle of nowhere,' an allusion to Salt Lake City, which hosted Games that Mr. Romney oversaw.Best Friends?