The blast that killed 16 people at a Tennessee workplace set off 24,000 pounds of explosives, authorities say

By Holly Yan, CNN (CNN) — The catastrophe at a Tennessee explosives plant started in a building that made devices used for mining and detonated more than 24,000 pounds of explosives, authorities said Friday. The October 10 disaster killed 16 employees at Accurate Energetic Systems, which makes military and demolition explosives about 60 miles west