Nazi Meth is as popular today as it was with the .......nazi's.
Cookers are dumped like litter along the old farm/ranch roads, anhydrous ammonia tanks are secured like gold in ranchers barns w/ alarms and CCTV coverage paid for in some part by local WOD task forces....
But I can remember being issued something we called black beauties in 73 for E&E use. Even recently we saw the issue of "pills" for pilots on extreme range missions.
Good read......
You are correct. Speed is still issued to pilots and long-range reconnaissance ops. Sometimes you have to stay awake for two or three days. It won't kill you. And there is nothing inherently immoral about it.
Getting hooked, OTOH, has no redeeming aspects.