Last year in the Stanford Law Review, I described an emerging trend in U.S. courts: litigation isolationism. Through developments in personal jurisdiction, forum non conveniens, international comity, and the presumption against extraterritoriality, I argued, courts have developed increasingly strong tools for avoiding transnational litigation. Decisions advancing litigation isolationism often fail to accomplish their stated goals—typically promoting separation of powers, avoiding interstate friction, and protecting defendants from the inconvenience of U.S. litigation. They also undermine important U.S. interests, often by excluding or dismissing cases that have close ties to the United States. At the end of that article, I cautioned against the continuation of the trend.