He said: " ... There are a number of questions that have been put by other colleagues that I want an answer to. That said, I'm anxious about this brave new world that Mr. Zuckerberg has presented us -- a brave new world what tens and tens and tens of thousands of private people are scrutinizing us and are saying “what is fake news” and “what is not fake news”, “what is hate speech” and “what is not hate speech”. Don't you think that this is a public task?"
He very subtly mentioned that the anti-trust bodies could mobilized to look into this if questions wouldn't be answered [1] -- https://youtu.be/bVoE_rb5g5k?t=5285.
[1] "... And competition for example: an anti-trust thing, that's important! Do we need -- I think we're gonna push our anti trust agency to go into this if there is no good answer to!"
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Here's an interview with Guy Verhofstadt (thanks, repolfx! I wasn't aware of who he is): https://www.channel4.com/news/guy-verhofstadt-mep-on-mark-zu...