Hina Shamsi is director of the American Civil Liberties Union National Security Project, which is dedicated to ensuring that U.S. counterterrorism policies and practices do not violate the Constitution or the United States obligations under international law. She is litigating the ACLUs lawsuit challenging the constitutionality of the U.S. governments killing of three U.S. citizens in Yemen in 2011. She has litigated numerous cases relating to post-9/11 torture, unlawful detention, discrimination against racial and religious minorities, and the freedoms of speech and association. Shamsi teaches a Columbia Law School course on international human rights, and has monitored and reported on the military commissions at Guantánamo Bay. She previously directed Human Rights First's Law & Security Program, and also served as senior advisor to the U.N. Special Rapporteur on Extrajudicial Executions.