Nearly two dozen people are feared dead after a massive explosion erupted at a Tennessee bomb factory this morning. The blast went off at the Accurate Energetic Systems plant Friday around 7.50am local time, the Hickman County Sheriff's Office confirmed. At least 19 employees currently remain unaccounted for, according to Odell Poyner, the emergency management director in nearby Humphreys County. The initial blast was so enormous that locals reported hearing and feeling it from miles away. The extent of the damage remains unclear at this time, but authorities say their main concern right now is the potential for secondary explosions....