rt Sawyer, Sean Wilentz, and Ezra Zilkha. I am especially grateful to Harold Edgar, the Julius Silver Profes- sor in Law, Science, and Technology at Columbia Law School; and to Jack Goldsmith, Henry L. Shattuck Professor at Harvard Law School, for sharing with me their legal perspective on the espionage statutes and

the day she died at age 95, when people ask her where I went to law school, she replied, “He got into Harvard, but he went to Yale.” I also got into Columbia Law School, and the dean of Columbia, William Warren, wrote a letter to my parents, congratulating them on my admission and on the fancy scholarship I had won.