UK warns Zuckerberg will face summons if he doesn't testify
 

The UK has reiterated its request for Mark Zuckerberg to testify before its Digital, Culture, Media and Sport Parliamentary Committee and this time it says if the CEO declines, he'll be compelled to appear the next time he steps foot in the country....

https://www.engadget.com/2018/05/01/...oesnt-testify/