Re: !!!
Reading the articles on this issue, I'm thinking that Zuck doesn't dare go the UK because the committee has a clue and won't be snowed under by the BS he tossed at the US Congress. Now if the EU will take the hint and get some knowledgeable types to ask intelligent questions and follow up questions (not the dog and pony show from the US Congress), there might be some answers or (hopefully) users will take note and dump FB.
Also is noted that FB is now "pre-installed" on Android phones. FB is definitely attempting to own the world and everyone in it, willing or not.