As most litigators know, in Asahi Metal v. Superior Court of Cal., 480 U.S. 102 (1987), a plurality of the Supreme Court embraced the stream-of-commerce theory of personal jurisdiction, which generally holds that if a manufacturer or distributor has sufficient knowledge and control of its distribution system, it can be sued in a state in which its products cause injury. Since Asahi Metal, the theory has evolved somewhat in federal and state appellate courts but had not been revisited by the Supreme Court.