This curriculum material, part of a continuing series on current and historical international issues, addresses the issues arising from the September 11, 2001, attacks on the World Trade Center and the Pentagon. On the morning of September 11, 2001, as people watched in horror, terrorist attacks were successfully launched against the United States. The initial questions of who would execute such an attack and why were soon followed by other questions. This unit provides teachers and students with a thorough introduction to responding to terrorism and invites students to join in the debate. To prepare for the debate, the unit provides extensive background reading. The core framework is a unit of four policy options allowing students to consider a range of alternatives for U.S. policy toward terrorism. The teacher's resource book contains a day-by-day lesson plan and student activities. The lesson for Day One seeks to arrive at a working definition of terrorism through the use of case studies. Using political cartoons, Day Two offers students the opportunity to examine differing perspectives on the issues raised by September 11, 2001. Subsequent lessons feature a simulation where students assume the role of advocates for the four options. It concludes with students developing their own options and applying their views to hypothetical crises. An alternative three-day lesson plan is also included. Part one of the student text examines the historical origins and purposes of terrorism as well as its evolution over the years. Part two explores the content and context of Osama bin Laden's call to violence against the United States, including the politics of the contemporary Middle East. Students are confronted with the same questions facing U.S. policymakers: What are the potential threats against the U.S.? What is the best way to respond?; What must be done overseas? and What should be done here at home? The curriculum material provides four possible options for dealing with terrorism: (1) "Direct an Expanded Assault on Terrorism"; (2) "Support UN Leadership to Fight Terrorism"; (3) "Defend Our Homeland"; and (4) "Address the Underlying Causes of Terrorism." Supplementary documents and a list of nine supplementary resources are appended. (BT)