Manufacturing ghost guns to be used by cartels in the U.S. and Mexico may be alarming for the average person, but for those involved in this underworld, it's just business. Watch Trafficked with Mariana van Zeller, streaming on Hulu. Explore the World with National Geographic subscriptions: https://natgeo.com/ytngmagazine ➡ Subscribe: https://on.natgeo.com/4p5A0D6 ➡ Get more Nat Geo Full Episodes: https://on.natgeo.com/3V5ZfHI ➡ Get wild with Nat Geo Animals Full Episodes: https://on.natgeo.com/