Good question. I would like the hearings, too, but they may have been cautioned that the investigation was successfully pressuring Berger to cooperate and Congressional hearings at this time would interfere and queer the deal.
He has agreed to cooperate (which to me indicates they know he did not act alone) so I am willing to have patience for a bit longer.
Oh, thanks. Didn't realize Berger might turn some evidence. If I were Berger I wouldn't be stopping at Fort Marcy Park anytime soon.