This article takes up what people might learn about resistance and surveillance by looking at how students at a Bronx, New York, high school have responded to security initiatives recently imposed on them. It discusses three responses: the protest; tactical avoidance; and what the author calls emergent participation. The author addresses each of these strategies in depth and follows with a brief consideration of what they teach individuals about resistance. Taken together, these responses offer people a chance to consider the multiple forms that resistance takes and those that emerge over time, in this case, over the course of a school year. The author begins by considering what is perhaps the most promising and definitely the most visible response to school-wide surveillance measures: a student-organized walkout of 1,500 students that took place at a large comprehensive high school in the Bronx, New York, in late September 2005. Before she discusses the protest, the author gives a brief history of New York City school security policy. (Contains 12 notes.)