WASHINGTON, Jan. 27, 2006 – The Defense Department is taking more steps to address the threat that terrorists are seeking weapons of mass destruction to use against U.S. forces and the homeland, a senior DoD official told reporters here today. "If you look at what we've done to date, we've nearly doubled our investments in chemical and biological defenses," Pentagon spokesman Bryan Whitman said. "We've implemented any number of important organizational changes to address the challenges that are posed by WMD more effectively." The U.S. military must have the capability to protect itself against chemical, nuclear and biological weapons, as...