It's not like the cat is just out of the bag: back in 974, journalist Seymour Hersh from The New York Times already wrote about the CIA's spying on its own citizens and testing drugs like LSD on unwitting U.S. citizens. It was also known that the CIA had plotted against foreign leaders like communist Fidel Castro. But up to today people could just say they didn't believe that the CIA did those things; there simply was not that much hard evidence. So who could have predicted that the CIA itself would come clean and present an internal report that goes into the (spectacular) details of all those examples that prove exactly why no government should ever come up with an agency that places itself 'above the law'.
The stories and rumours have been around for some odd 40 years, but now the CIA's 'dirty laundry' also proofs that the CIA was plotting even against foreign leaders. In particular against Cuba's Fidel Castro, the proverbial thorn in USA's side. Suddenly the documentary "638 ways to Kill Castro" has some new credits. No one can say anymore that those weird 'conspiracy theorists' where just making up stories! As it turns out, the CIA really was trying to use the Maffia to get to Castro.
Just more proof of what we all know: do not trust any 3-letter agencies!