I'm actually not a Doctor Who fan (nothing against it... i'm too impatient to watch it) so I may be misunderstanding how "regeneration" works, but imagine for a second a Doctor who's been a man for over 10 generations who wakes up to realize he's now a woman! It might be interesting if they scripted it as if the woman still had the mind of the original male Doctor. "man realizes how some people treat women" angle. "man can't wait to be a man again" "man spends too long in the shower washing his privates" I dunno.
There is 100 percent auditability on what we do.
How does that jibe with the recent story NSA Can't Search Its Own Email
You will have many recoverable tape errors.