He was working with the CIA drug smuggling operations associated with the Iran Contra affair. However, he also was prosecuted for this, which tends to indicate that the scumbags don't like him. You can read Executive Intelligence Review's treatment here and here (Lyndon Larouche was sent to prison around the time these events were going down and has a lot of information on it). On the other hand, my sources are telling me they think he's probably with the white hats, but not 100% sure.