Human trafficking has been described as the largest human rights violation in the history of mankind. It is the third-largest criminal activity in the world (after drug smuggling and arms dealing). The estimated twenty-seven million enslaved individuals represent the highest number of slaves in human history. This course applies both a historical and contemporary context on slavery and anti-slavery and quantitative analysis to study the challenges confronting law enforcement and diplomatic agencies around the world. Questions students address include: How effective are the current methods for tracking and prosecuting human trafficking? What laws and/or policy changes could be enacted to eradicate human trafficking? How is the problem understood in different ways throughout the world? What is the role of the Internet and dark web in human trafficking? How can data inform anti-human trafficking efforts, and what is the limit of data? What should the role of the United States be in combatting human trafficking? What are other countries doing to confront the issue, and do they understand the problem in similar terms? Guest speakers from global NGOs, the Department of Homeland Security, survivors of human trafficking, policy makers, and anti-slavery activists.