Zachary M. Schrag is the author of The Great Society Subway: A History of the Washington Metro; Ethical Imperialism: Institutional Review Boards and the Social Sciences and The Princeton Guide to Historical Research.He has received grants and fellowships from the National Science Foundation, the Gerald Ford Foundation, and the Library of Congress and has been awarded the Society for American City and Regional Planning History’s John Reps Prize. He is the director of the Masters Program in History at George Mason University.