Published on Sat, Nov 07, 2009 at 11:33, Updated on Sat, Nov 07, 2009 at 12:11 in World section Suspected gunman Major Nidal Malik Hasan opened fire with two handguns at the Fort Hood Army post on Thursday, in one of the worst killing sprees ever reported on a US military base, army officials said. The US born son of Palestinian immigrants, Hasan's Muslim and Arab heritage prompted immediate specu