Correspondence issued by the Government Accountability Office with an abstract that begins "Since the early 1960s, the United States has maintained an embargo on Cuba through various laws, regulations, and presidential proclamations regarding trade, travel, and financial transactions. A stated purpose of the embargo--the most comprehensive set of U.S. economic sanctions on any country--is to deny hard currency to the Cuban government. The embargo, which the President has broad authority to modify, is implemented primarily by the Department of the Treasury (Treasury) through regulation of financial transactions with Cuba and by the Department of Commerce (Commerce) through regulation of the export of commodities, software, and technology to ...