drug trafficking

They're awfully good at this, aren't they? http://www.nytimes.com/2009/10/28/world/asia/28intel.html?_r=2&ref=global-home&pagewanted=all

How deep were they invovled? Furthermore to what degree, if any did policy changes by the Reagan administration facilitate the "alleged" cooperation cooperation between the CIA and Contras in the sale of cocaine and crack to Americans? And, why doesn't the public know more about all this and...