It's impossible to sum up Thomas P.M. Barnett's book "The Pentagon's New Map: War and Peace in the 21st Century," but let's try. Basically, what the senior strategic researcher at the U.S. Naval War College has done is to draw a map of the post-9/11 world and try to show the U.S. military how to deal strategically and tactically with the new threats posed to developed nations of the West ("the Core") by countries in "the Gap" -- the underdeveloped, under-governed, terrorist-spawning countries in Africa, the Middle East, Central Asia and the Caribbean Rim that Barnett says are economically "disconnected"...