Predators and Parasites: Persistent Agents of Transnational Harm and Great Power Authority

What explains variance in the policy of Great Powers toward drug traffickers, pirates, and terrorists? Does counterharm policy depend just on the degree of material harm caused to a powerful state by such nonstate actors, or do normative, moral, and emotional factors also play a role? Why did the U.S., for example, harshly punish al Qaeda after 9/11 but avoid taking similar forceful measures against foreign drug traffickers who enable the deaths of thousands of Americans each year by sellin...