A new, two-part, teaching case study, Sinking of the Sewol: South Korea’s 2014 Ferry Disaster, was developed through Harvard’s John F. Kennedy School of Government. The case study may prove useful in courses that cover safety regulation, emergency response, crisis management, and transportation politics. Written by Kirsten Lundberg and Soryoung Park for Arnold M. Howitt, Ph.D., the case can frame a challenging classroom discussion of a deeply flawed emergency response to the ferry incident and its subsequent sinking. It also allows graduate and advanced undergraduate students to probe the antecedents of the accident— including a number of safety violations—and follow subsequent events as the government’s handling of the maritime tragedy became a divisive national political issue and threat to the government of President Park Geun-hye.