This course, which has been offered annually since 2009, offers students an opportunity to study, research, and participate in current legal debates over international law, national security law, and foreign relations law. Students work on research topics selected by Professor Hathaway and the class from among those presented by U.S. congressional staff, executive branch lawyers, or nonprofit groups working on issues relating to international law, national security law, or foreign relations law. In past years, the seminar has researched topics including the law of cyber-attack, the power of the U.S. government to detain terrorism suspects, the scope of the Treaty Power, the relationship between human rights law and the law of armed conflict, extraterritorial application of human rights obligations, the law governing the U.S. targeted killing program, and the legal requirements of various human rights treaties. The seminar has also submitted amicus briefs to the D.C. Circuit and U.S. Supreme Court. Students work both individually and in small groups to write reports on selected topics and, as appropriate, produce recommendations for reform. Students also have an opportunity to meet with attorneys and policymakers who are directly involved in the legal debates on which the class is working.