Andy Weber

Now that there's actually a market where one can buy large quantities of fentanyl analogues, it eliminates the capability gap and it makes it accessible to terrorist groups, it's a game changer. In my lifetime I've never seen a weapon of mass destruction that is part of an existing black market.

That's when we at the Pentagon started to realize that militaries were developing fentanyl analogues as a form of chemical weapon and that we needed to start working on countermeasures.