The thesis of this update on developments in US anti-terrorism law since 9/11 is that the system of checks and balances among the several branches of the government, executive, judicial and legislative, has been undermined by the deferral and avoidance of key decisions by each of the branches and the withdrawal of authority by one branch from another. Examples are drawn from four Supreme Court decisions handed down since 9/11, the use of sunset clauses in the USA PATRIOT Act, the Detainee Treatment Act of 2005, the use of torture in interrogating suspected terrorists, National Security Agency electronic surveillance, extraordinary renditions of suspected terrorists, and the Military Commissions Act of 2006.