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Michael Ratner is the President Emeritus of the Center for Constitutional Rights. Over the years, he has litigated at least a dozen cases challenging a U.S. President's authority to go to war, as well as many cases against international human rights violators. He acted as co-counsel in a 2004 case brought against the United States Supreme Court, arguing the Guantánamo Bay detainees have the right to test the legality of their detentions in court. As part of the Center's focus on human rights and civil liberties violations in the wake of the September 11 attacks, Ratner has led several other cases representing detainees held at Camp X-ray in Cuba. He is the author and co-author of several books and numerous articles including Hell No: Your Right to Dissent in 21st-Century America. Ratner lives in New York.