I am confused here, the massive arming by the drug pushers happened only in a prohibited world. Yes, the DEA was perhaps not ready or was expecting Mr.Machine G

I am confused here, the massive arming by the drug pushers happened only in a prohibited world. Yes, the DEA was perhaps not ready or was expecting Mr.Machine Gun to show up, but if 18th amendment and Al Capone were any lesson, they should know better.