Meth is just the moral panic du jour, before the 2000s being a long-term functional amphetamine user was stereotypical behavior for jobs requiring long-term con

Meth is just the moral panic du jour, before the 2000s being a long-term functional amphetamine user was stereotypical behavior for jobs requiring long-term concentration (truck drivers, pilots, double-shift factory workers, doctors, students, finance types, etc.). It wasn't even a controlled substance till the 70s.