Since the North’s attack on Yeonpyeong Island, one question has emerged repeatedly in the aftermath: What did the South’s response fire do to North Korea? For the first two days, the South Korean government and military said they were “collecting intelligence” and blamed cloudy weather for the delay in verifying how much damage had been done to the North Korean side. As the furor from the public and lawmakers grew with the discovery of two civilian deaths in addition to the two marines, military officials started making firm assertions that the North’s western coast, at which South Korean troops on...