The use of stimulants during WWII is no secret, but in the last decade, there has been a lot of discussion and analysis of it. Just how significant was drug use in Nazi Germany, and how did the Allies compare?
Research:

SYMHC Classics: COINTELPRO 1
39:12

Behind the Scenes Minis: It's Not Unprecedented
16:46

The Rendition of Anthony Burns, Part 2
43:32