THE STRONG AND THE WEAKThe strong. . . http://www.latimes.com/news/nationworld/nation/la-na-defense19mar19,1,7779545.storyTwo years after the U.S. invasion of Iraq, the Pentagon has formally included in key strategic plans provisions for launching preemptive strikes against nations thought to pose a threat to the United States. . . The doctrine also now stipulates that the U.S. will use "active