Although September 11, 2001, marked a pivotal moment for many people in the United States and in other countries, terrorism did not begin or end that day. In fact, the threat of terrorism in the United States has changed since 2001. According to an October 2020 report by the U.S. Department of Homeland Security, the threat from al Qaeda and other foreign terrorist groups continues, but no longer represents the greatest threat to people in the United States. The increasing number of attacks by white extremists in recent years against Jewish, Black, Muslim, Latino people, and other groups led the U.S. Department of Homeland Security to classify these extremists as the most dangerous threat to the United States. Concerns about terrorism persist and raise important questions about how to respond. What is the best way to respond to terrorism? How great is the threat? What must be done overseas? What should be done in the United States? Responding to Terrorism: Challenges for Democracy helps students consider these important issues and prepares them to advocate for different options for U.S. policy in a simulation set in the U.S. Senate. www.choices.edu