The Disposition Matrix, informally known as a kill list, is a database of information for tracking, capturing, "rendering", or killing suspected enemies of the United States.[1] Developed by the Obama administration beginning in 2010, it goes beyond existing kill lists and is intended to become a permanent fixture of U.S. policy.[1] The process determining criteria for killing is not public and was heavily shaped by National Counterterrorism Director and former Central Intelligence Agency (CIA) Director John O. Brennan.[2]