Outsider:  You use the term "blackmail" in reference to the very common prosecutor practice of "nailing" a lower-level suspect and cutting a deal to work your way up the food chain.  Were this not done, we'd seldom see successful prosecutions of high-level drug dealers (as one example).  Yes, indeed, Mueller will likely have some serious cooperation from Manafort, Gates and Papadopoulis.  That fact, I'm guessing, is making Mr. Trump and his inner-circle, especially Junior and Jared Kushner, very nervous.  BTW: You don't curry favor with prosecutors by lying...the information you provide must be sound and useful (that doesn't include perjury) if it's going to help you avoid those long prison sentences.  Information provided by informants is ALWAYS very carefully vetted and verified before it can be used in successful prosecutions.  Gary Crum