1. The CIA "manages" the global drug trade
2. Kuwaitis lied about Iraqi atrocities
3. Nazi-like medical experiments carried out by the US
4. FBI sought to destroy civil rights groups
5. Pentagon planned to attack US civilians
6. CIA control of the US news media
7. Dangers of asbestos hidden
8. The FBI poisoned alcohol
9. The Gulf of Tonkin
10. The Lusitania
Everyone of these stories, and many more, are fully documented.
Believing any of these stories before they finally became public knowledge would have had you branded you a "conspiracy nut".