I'm reading Dark Alliance: the CIA, the Contras and the Crack Cocaine Explosion by Gary Webb and my mind, it is blown. This book is fascinating! It's not like I didn't already know about the CIA/Contra/drug thing but reading this makes me realize I didn't really know. Holy damn, it's hard to believe what people will do. One particular nougat of information that I have never once come across is that the crack epidemic was predicted by researchers well before it happened. These same researchers testified before Congress, requested research monies, and suggested ways to prevent the epidemic. They were ignored.
side note: I recognize some of the documented events from their appearance in The Power of the Dog.