There is really no way for anyone to know unless they were there to see first hand what was actually on those tapes. There were an awful lot of tapes and the possibility of sensitive material being contained is still there. The creators of those tapes may be long gone and if they were not cataloged well, then it is possible that something sensitive may have been thrown in the mix by mistake. Remember NASA thought nothing could be recovered because of the tape condition.Unless there in person to see the contents no one here will know. Even if there was top secret info on there I'm sure JB was bound not to disclose it to anyone other than NASA/US government.For their eyes only.
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