Recent disclosures concerning the size and scope of the National Security Agency's (NSA's) surveillance activities both in the United States and abroad have prompted a flurry of congressional activity aimed at reforming the foreign intelligence gathering process. While some measures would overhaul the substantive legal rules of the USA PATRIOT Act or other provisions of the Foreign Intelligence Surveillance Act (FISA), there are a host of bills designed to make procedural and operational changes to the Foreign Intelligence Surveillance Court (FISC), a specialised Article III court that hears applications and grants orders approving of certain foreign intelligence gathering activities, and the Foreign Intelligence Surveillance Court of Review, a court that reviews rulings of the FISC. This book will explore a selection of these proposals and address potential legal questions such proposals may raise.