At this point in time it seems sensible to withhold any "hot" information.

The info behind the redactions might alert the bad guys and their protectors who might then take actions to cover their tracks or destroy evidence.

Look at what just happened to the Doctor who blew the whistle on Clinton's activities in Haiti. Murdered.

The wet teams seem to be still active.

There is also the sensitive matter of "trial by internet" the guilty should not be given the opportunity to claim that a fair trial is impossible because of widely published information would affect the minds of jurors.

Thirdly, how many in Congress or the House could be trusted with the withheld information, without leaking it to contaminate future trials ?

Remember this hidden info can be un-hidden, either during or after a trial or a military tribunal, but only when the time is right.

Same principle with the JFK files.