South Korea succeeded in a test of a key homegrown missile interceptor under development earlier this week, the third such success out of four tests so far, as it is cranking up efforts to deter evolving North Korean threats. On Tuesday, the state-run Agency for Defense Development revealed to the press corps the whole process of the interception test on the Long-range Surface-to-Air Missile at its Anheung testing site in Taean, 109 kilometers southwest of Seoul, for the first time. The L-SAM is