On the eve of the anniversary of the 9/11 attacks, a federal judge directed the Saudi Arabian government to make as many as 24 current and former officials available for depositions about their possible knowledge of events leading up to the airplane attacks of Sept. 11, 2001, which killed almost 3,000 Americans. Those officials include Prince Bandar, the former ambassador to the United States, and his longtime chief of staff. The order was immediately hailed by families of the 9/11 victims as a milestone in their years-long effort to prove that some Saudi officials were either complicit in the attacks...