Zuckerberg's testimony mars case, lawyer for Israeli terror victims says
The lawsuit is one of several seeking to hold companies such as Facebook liable for failing to police online speech.
Facebook CEO Mark Zuckerberg listens while testifying before a joint Senate Judiciary and Commerce Committees hearing regarding the company’s use and protection of user data, on Capitol Hill in Washington, U.S., April 10, 2018. REUTERS/Leah Millis(photo credit: REUTERS/LEAH MILLIS)