Introduction to SciAm's issue on Privacy. Our jittery state since 9/11, coupled with the Internet revolution, is shifting the boundaries between public interest and "the right to be let alone"
Many issues posing as questions of privacy can turn out to be matters of security, health policy, insurance or self-presentation. It is useful to clarify those issues before focusing on privacy itself
Young people share the most intimate details of personal life on social-networking Web sites, such as MySpace and Facebook, portending a realignment of the public and the private
Security systems based on anatomical and behavioral characteristics may offer the best defense against identity theft
In spite of recent legislation, tougher laws are needed to prevent insurers and employers from discriminating on the basis of genetic tests
Mashing everyone's personal data, from credit card bills to cell phone logs, into one all-encompassing digital dossier is the stuff of an Orwellian nightmare. But it is not as easy as most people assume
A versatile assortment of computational techniques can protect the privacy of your information and online activities to essentially any degree and nuance you desire
Night-vision cameras, biometric sensors and other gadgets already give snoops access to private spaces. Coming soon: palm-size "bug-bots"
A privacy activist argues that the devices pose new security risks to those who carry them, often unwittingly
As telephone conversations have moved to the Internet, so have those who want to listen in. But the technology needed to do so would entail a dangerous expansion of the government's surveillance powers
Experts from Sun, Adobe, Microsoft and MacAfee discuss how to protect against more numerous and sophisticated attacks by hackers; security professionals call for upgraded technology, along with more attention to human and legal factors
In-Depth Report: Focus on China
China, the Olympics, and the Environment
Our multimedia coverage looks at the country that now leads the world in emitting greenhouse gases. With reports on Yangtze River power, China’s first carbon-neutral city, and more.
Also: Doping at the Olympics.
In-Depth Report: Technology and Privacy
Cyberterrorism, Online Predators, Electronic Voting, and More
Read, listen to and interact with exclusive digital features complementing this print issue on "The Future of Privacy."
Musicophobia: When Your Favorite Song Gives You Seizures
A woman exhibits a rare kind of epilepsy triggered by music.
Fact or Fiction
Men Have a Biological Clock
Does male fertility have an expiration date?
Astrophysicist J. Richard Gott on Time Travel
The Princeton University scientist discusses the realities and speculations of voyaging through the fourth dimension.
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