...the ATS applies to piracy, which occurs (typically) on the high seas. This framing of the issue will raise the question whether the presumption against
extraterritoriality distinguishes between
extraterritorial applications of US law depending on whether the situation in question is within another state's jurisdiction. The Court in recent years hasn't seemed to apply such a distinction. I've argued, however, that it should. Specifically, a presumption against extrajurisdictionality that applies more strictly to situations outside U.S. prescriptive jurisdiction under international law than to situations (such as piracy on the high...