J.D., Harvard Law School. Since 1993 Legal Director of ACLU, American Civil Liberties Union. During 1987-1993 Associate Legal Director, ACLU, and during 1976-1987 Staff Councel, New York Civil Liberties Union. 1995-present; Adjunct Professor, Columbia Law School, course on free speech and the Internet. In 1981 he was awarded Civil Rights Lawyer of the Year, "The American Lawyer".

Publications include: First Amendment and the Media: Regulating Interactive Communications on the Information Superhighway, 5 Fordham Intellectual Property, Media & Entertainment L.J 249, 1995. Justice for Aliens in Our Endangered Rights, Phantheon 1984, with Henderson.