Kind-of, not really. Prosecutors are supposed to divulge redacted transcripts under the Jencks act in case a witness for the grand jury contradicts himself in

Kind-of, not really. Prosecutors are supposed to divulge redacted transcripts under the Jencks act in case a witness for the grand jury contradicts himself in front of the real jury. Prosecutors thumb their nose at this obligation all the time and are very rarely called out on it.