An influential advisory panel to Defense Secretary Donald Rumsfeld is launching an ambitious campaign to identify technology areas that could point the way to the development of a new generation of weapon systems tailored to defeat irregular forces. Kenneth Krieg, the Pentagon's acquisition executive, directed the Defense Science Board on Jan. 13 to form a panel -- the "2006 Summer Study on 21st Century Strategic Technology Vectors" -- to recommend by this summer a handful of new technologies that will...