I've been making fireworks for 20 years and how they produced fireworks is terrifying. The lack of safety is just waiting for a accident.At first I thought they were making grenades.You gotta respect the high level of safety and quality control inspections.That's a risky and dangerous job, but it's fascinating to see how fireworks are made.No cellphones in sight, just dudes enjoying the moment in unsafe, unsanitary, dangerous conditions.