This is the largest area of application of biometric technologies, and the most direct lineage to the feudal gate keeping system. Initially mainly used in military and other "high security" territories, physical access control by biometric technology is spreading into a much wider field of application. Biometric access control technologies are already being used in schools, supermarkets, hospitals and commercial centres, where the are used to manage the flow of personnel.
Biometric technologies are also used to control access to political territory, as in immigration (airports, Mexico-USA border crossing). In this case, they can be coupled with camera surveillance systems and artificial intelligence in order to identify potential suspects at unmanned border crossings. Examples of such uses in remote video inspection systems can be found at
A gate keeping system for airports relying on digital fingerprint and hand geometry is described at
An electronic reconstruction of feudal gate keeping capable of singling out high-risk travellers from the rest is already applied at various border crossing points in the USA. "All enrolees are compared against national lookout databases on a daily basis to ensure that individuals remain low risk". As a side benefit, the economy of time generated by the inspection system has meant that "drug seizures ... have increased since Inspectors are able to spend more time evaluating higher risk vehicles".
However, biometric access control can not only prevent people from gaining access on to a territory or building, they can also prevent them from getting out of buildings, as in the
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"Freedom of anonymous speech is an essential component of free speech."
Ian Goldberg/David Wagner,
Someone wants to hide one's identity, to remain anonymous, if s/he fears to be holding accountable for something, say, a publication, that is considered to be prohibited. Anonymous publishing has a long tradition in European history. Writers of erotic literature or pamphlets, e. g., preferred to use pseudonyms or publish anonymously. During the Enlightenment books as d'Alembert's and Diderot's famous Encyclopaedia were printed and distributed secretly. Today
The original design of the Net, as far as it is preserved, offers a relatively high degree of privacy, because due to the client-server model all what is known about you is a report of the machine from which information was, respectively is requested. But this design of the Net interferes with the wish of corporations to know you, even to know more about you than you want them to know. What is euphemistically called customer relationship management systems means the collection, compilation and analysis of personal information about you by others.
In 1997 America Online member Timothy McVeigh, a Navy employee, made his homosexuality publicly known in a short autobiographical sketch. Another Navy employee reading this sketch informed the Navy. America Online revealed McVeigh's identity to the Navy, who discharged McVeigh. As the consequence of a court ruling on that case, Timothy McVeigh was allowed to return to the Navy. Sometimes anonymity really matters.
On the Net you still have several possibilities to remain anonymous. You may visit web sites via an
In Germany, in 1515, printers had to swear not to print or distribute any publication bypassing the councilmen. Today repressive regimes, such as
Anonymity might be used for abuses, that is true, but "the burden of proof rests with those who would seek to limit it. (Rob Kling, Ya-ching Lee, Al Teich, Mark S. Frankel, Assessing Anonymous Communication on the Internet: Policy Deliberations, in: The Information Society, 1999).
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Saddam Hussein joined the revolutionary Baath party when he was a university student. In 1958 he had the head of Iraq, Abdul-Karim Qassim, killed. Since 1979 he has been President of Iraq. Under his reign Iraq fought a decade-long war with Iran. Because of his steady enmity with extreme Islamic leaders the West supported him first of all, until his army invaded Kuwait in August 1990, an incident that the USA led to the Gulf War. Since then many rumors about a coup d'état have been launched, but Saddam Hussein is still in unrestricted power.
Probably the most significant Internet service, the World Wide Web is not the essence of the Internet, but a subset of it. It is constituted by documents that are linked together in a way you can switch from one document to another by simply clicking on the link connecting these documents. This is made possible by the Hypertext Mark-up Language (HTML), the authoring language used in creating World Wide Web-based documents. These so-called hypertexts can combine text documents, graphics, videos, sounds, and
Especially on the World Wide Web, documents are often retrieved by entering keywords into so-called search engines, sets of programs that fetch documents from as many
Among other things that is the reason why the World Wide Web is not simply a very huge database, as is sometimes said, because it lacks consistency. There is virtually almost infinite storage capacity on the Internet, that is true, a capacity, which might become an almost everlasting too, a prospect, which is sometimes
According to the Internet domain survey of the