"...[T]he United States has spent several tens of billions of dollars on missile defense research-and yet China, Iran, North Korea and possibly others have continued to pursue increasingly effective long-range ballistic capabilities. If missile defenses are a deterrent, why do US competitors-to say nothing of outright enemies-seem undeterred?"

"...[P]reventive military action is a lot bigger than George Bush, 9/11, the UN, or anything else. The problem is not as new as you might think; the erosion of national sovereignty and the growing temptations of preventive war have been in the works since at least the late 1980s, and in countries all around the world."