Amid a growing barrage of front-page headlines, U.S. embassy officials "strongly suggested" President Bush's twin daughters, Jenna and Barbara Bush, cut short their trip to Buenos Aires because of security issues, U.S. diplomatic and security sources tell ABC News. But the girls have stayed on, celebrating their 25th birthday over the weekend and producing even more headlines about their activities. Officials say the media coverage upstaged publicity plans for the new U.S. Ambassador Anthony Wayne, who had only recently arrived in the country. Neither the White House nor the U.S. embassy in Buenos Aires responded to requests for comment. The...