Even if they are, I'll wager the date still exists. All that's required is the will stop asking for it, and go take it.
“The only people who don’t want to disclose the truth are people with something to hide.”
Barack Obama, weekly address, Aug 21, 2010
https://www.youtube.com/watch?v=bhFB7-w2MY8
I wish Republicans would use that quote time and time again in all the ongoing investigations.