Shrewd Sanctions: Statecraft and State Sponsors of TerrorismPolicymakers will need all the tools at their disposal to craft an effective response to international terrorism and to protect and promote other U. S. interests in the coming decades. In this quest to shape the right strategies for the challenges ahead, economic instruments will play a central role. O'Sullivan, an expert on the use of positive and negative tools of economic statecraft, argues that in the post September 11th international climate, the