To prove Willie's involvement (that's the evidence Berger was destroying) is to implicate Hillie. The leftists back Hillie and must block/hide anything that might hurt her chances with the normal voters (the dem voters are too stupid to decide for themselves). Attacking W draws attention from Willie. That is one reason that an honest investigation of UN corruption is so important. If Volker dug deep enough, he'd find Willie (or his pardon buying surrogates) at the same trough as the UN thieves.
Mark Rich, etc?
I agree with you...why the investigation is taking so long, tho, is beyond me..
we all could have completed this in say, 90 days...