Mitt Romney, in his first trip abroad as the presumptive GOP presidential nominee, is trying to walk back comments he made questioning London's Olympics preparation -- comments that have drawn a sharp response from Prime Minister David Cameron.
The dustup began Wednesday, as Romney, who ran the 2002 Salt Lake City games, said there were "disconcerting" signs in the days before this year's games.
"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," he told NBC News.