While Hitchens supported Israel's right to exist, he was critical of the Israeli government's handling of the Israeli–Palestinian conflict. Having long described himself as a socialist and a Marxist, Hitchens began his break from the established political left after what he called the "tepid reaction" of the Western left to the controversy over "The Satanic Verses", followed by what he saw as the left's embrace of Bill Clinton and the anti-war movement's opposition to NATO intervention in Bosnia and Herzegovina in the 1990s. He later became a so-called liberal hawk and supported the War on Terror, but he had some reservations, such as his characterisation of waterboarding as torture after voluntarily undergoing the procedure. In January 2006, he joined four other individuals and four organisations, including the ACLU and Greenpeace, as plaintiffs in a lawsuit, "ACLU v. NSA", challenging Bush's NSA warrantless surveillance; the lawsuit was filed with the ACLU.