Sorry, this will never happen. No way in hell they get 2, let alone 12 jurors that can get cleared at that. Level.One possibility would be to fast track clearances for the jury members. Unconventional, yes, foolproof, no. And then be very selective about which documents are submitted as evidence. Do not allow note taking, and if the document goes into the jury room, have at least two chaperones to ensure it is not being copied. Finally, and they will have heard this a thousand times during the trial, but remind jurors the penalties of sharing classified information.
There is a whole Classified Information Procedures Act that governs the handling of classified information in courts. The court will follow that.The problem is many millions not sequestered in the jury will never believe the government. After the gulf war, I don’t believe government assurances based on classified information. They need to assure conservatives and skeptics that might listen to evidence they really have evidence, not just a Colin Powell willing to lie convincingly.