Imagine some day a hacker will be able to mimics speech with the next version of Tacotron 2[1] then use it over the next version of Face2Face... Scary future ahead.
I knew this was coming and it's more surreal that I thought it would be. We crossed the uncanny valley. I'm not sure we are prepared for trusted sources to be faked this well and this easily. It will be interesting to see how we as a society start to cope with an acid trip level of real life unreliable narrator.
I read something recently about photographers pushing for cryptographic keys, maybe it was even registering media in the blockchain. Certifying origin and authorship for exactly this situation. I think it was a podcast. Maybe Open Source.
[1] https://news.ycombinator.com/item?id=16014047