https://phys.org/news/2018-11-global-lawmakers-grill-facebook-exec.html

Richard Allan, the company's vice president for policy solutions, said he volunteered to attend because Zuckerberg had already appeared before other committees this year, including in Washington and, briefly, Brussels.

Lawmakers from Canada, Ireland, Brazil, Argentina, Singapore, Belgium, France and Latvia joined their British counterparts at the parliamentary select committee hearing—the first such cross-border event in London since 1933.