Despite the official precision bombing policy, North Korea reported extensive civilian casualties. According to military analyst Taewoo Kim, the apparent contradiction between a policy of precision bombing and reports of high civilian casualties is explained by the very low accuracy of bombing. According to a FEAF analysis, 209 bombs needed to be dropped in order to reach an 80 percent likelihood of hitting a 20 feet (6.1 m) by 500 feet (150 m) target.