North Korea failed to launch its second destroyer after the warship suffered damage during its movement to the water this week, state media reported Thursday, in an embarrassment for leader Kim Jong Un as he pushes to modernize his naval forces. It's not common for North Korea to acknowledge military-related setbacks, but observers say the disclosure of the failed ship launch suggests that Kim is serious about his naval advancement program and confident of ultimately achieving its objectives. During a launching event at the northeastern port of Chongjin on Wednesday, the newly built 5,000-ton-class destroyer lost its balance and was punctured in its bottom sections after a transport cradle on the stern section slid off first and became stuck, according to the Korean Central News Agency.