It occurs to me that here’s how Hillary will be caught on her almost-certain lie that she turned over all her State-related emails:
Those she didn’t turn over, assuming they exist, still reside on someone else’s server, either as a sender or a recipient.
This, I believe, is why Hillary turned over paper copies instead of electronic ones. It wasn’t to slow down their processing by investigators, but rather to make it far more difficult for others in government to check to see if their emails from/to Hillary were included in those turned over.
Instead of simply searching them for keywords, they now have a pile of 55,000 sheets of paper to plow through instead. By the time she’s outed, the election will be long past, or so she hopes.