Joint Base Pearl Harbor-Hickam was locked down for hours because of a bomb threat. Play Video: https://www.kitv.com/clip/15223704/bomb-threat-locks-down-joint-base-pearl-harborhickam A bomb threat forced military officials to lock down Joint Base Pearl Harbor-Hickam. By the afternoon, it was back to normal for the busy Oahu base, after its gates were closed for four hours. The ripple effects of the bomb threat were also felt around Pearl Harbor. A line of traffic stretched out from Joint Base Pearl Harbor-Hickam after its gates were closed at 9:39 a.m. Drivers not only waited to get in, but also were unable to leave because of a security...