Generally, courts can strike items from the transcript, if someone misspeaks / reveals things they were not supposed to reveal / if a witness speaks to things t

Generally, courts can strike items from the transcript, if someone misspeaks / reveals things they were not supposed to reveal / if a witness speaks to things that were not part of the question, etc. That mechanism would slip a lot more often if there were multiple recordings. https://en.wikipedia.org/wiki/Motion_to_strike_(court_of_law) https://en.wikipedia.org/wiki/Motion_to_strike_(court_of_law... I'm pretty sure committees examining confidential materials routinely have someone review the transcript for accidental disclosures.