The FBI maintains a Web site (1) that explains the purposes and ramifications of the Communications Assistance for Law Enforcement Act (CALEA). In addition to discussing the telecommunication industry's role in supporting the act, the site defines electronic surveillance and offers several documents regarding associated legal issues. An excellent source for government surveillance information comes from the Center for Democracy and Technology (2). The material includes an overview of wiretapping and details about government interceptions of Internet communications. Shortly after the terrorist attacks, the Defense Advanced Research Projects Agency began the Total Information Awareness (TIA) Program. This highly controversial project is introduced by the American Civil Liberties Union (3). The site does a good job of describing the objectives of the TIA, and several links to other sources of information are given. In a technical paper published in August 2002 (4), researchers show that optical emanations from telecommunications devices can be monitored remotely. Light emitting diodes, often used as indicators in modems and other data transfer equipment, flash in distinct patterns that could compromise otherwise secure data transmission. Despite being easy to exploit, the authors point out that this vulnerability would generally be simple to fix. A news story from May 16, 2003 (5) highlights a recent US Government report stating that secure telephones can be wiretapped nearly as easily as standard phones. The article is accompanied by links to the original report and an essay on security. Companies often monitor employee computer and email activity. A law professor from Bentley College writes about workplace privacy in an essay from 2003 (6). Citing a number of hypothetical examples, the author weighs the employees' rights versus those of the company. The technical implementation of the aforementioned CALEA is described in a detailed article from May 2003 (7). The needs of law enforcement are compared to what is achieved with the resulting systems and technology, and a few statistics are included to show that electronic surveillance can be effective. Lastly, an article from PC World (8) reports that the US Government is seeking to increase its surveillance of email and Web usage. The article includes a link to the 120-page draft of the Domestic Security Enhancement Act of 2003.
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