Anthrax Vial Collectors?

About 20 years ago, 60 Minutes ran a story about a subculture of people–mostly non-scientists or -doctors–who collected vials of dangerous disease cultures. They even interviewed one of them at some length. Is there a name for this subculture, and is it still a thing?

Criminals? I didn’t think it was legal in the US to do this since it would pose an imminent threat to your neighbors. Trying to find a law against it…