As many as 12 Western soldiers -- including several Americans -- were shot in a deadly attack on high-level officials visiting a military academy Tuesday near Afghanistan's capital. U.S. officials told NBC News that most, if not all, of the victims were American. They said a lone gunman opened fire at a group that included American officials at the Camp Qargha training facility. Three Western soldiers died - including a high-ranking officer - and about a dozen were wounded, according to senior U.S. defense officials. The officials said the death toll is expected to rise. Earlier, a spokesman for the...