The Pentagon announced plans March 15 to add 14 missile interceptors to its anti-missile system in response to recent nuclear posturing of North Korea. The new interceptors would augment 26 already deployed at Ft. Greely, Alaska, with four others deployed at Vandenberg Air Force Base in California. But the system is plagued with technical failures. The last successful hit against a target was in December 2008; test launches have failed to hit their targets since then. The Pentagon is said to have discovered a flaw in the guidance system of the newest Raytheon-made model. (LAT, March 16; Bloomberg, March 15) The ABM Treaty, which barred anti-ballistic missile systems during the Cold War, was pronounced effectively dead in the Bush years