As part of EFF's Transparency Project, Mark regularly represents EFF in cases under the federal Freedom of Information Act. Mark represented EFF in the first known victory by a private party in the secret Foreign Intelligence Surveillance Court, and EFF's litigation resulted in the first compelled disclosure of an opinion of that court. As a result of his transparency work, tens of thousands of previously secret government documents have been made available to the public. Mark also represents clients in cases challenging the constitutionality of various aspects of federal surveillance law and government surveillance programs. Mark is a graduate of Northwestern University and the University of California, Berkeley School of Law.