Among investigative tactics, undercover policing is unique in the extent to which it allows the police to shape the events they investigate. Yet this shared feature of undercover investigations produces very different academic controversies in the United States and Europe. European scholars fear...

The United States has policed the multinational effects of multinational corporations more aggressively than any other coun-try, but recent decisions under the Alien Tort Statute indicate that it is now backtracking. Europe, paradoxically, is moving in the other direction. Why do some countries...