How ideas from biology-evolution, immune systems and forensics-will keep your PC safe from hackers
Until we figure out how to lock up the spammers, ditching Outlook can protect you from the worst they have to send
How safe can a citizen expect to be in a post 9/11 city? What technology can a city use to make its citizens safe?
High-tech security isn't just for the airport anymore. Advances now coming out of the labs will help protect what's dear to you, from your car to your kids, your dinner to your dinero
Out of the wild
Toxin sniffers, missile jammers, dirty-bomb detectors: Will a new security arsenal make us safer?
A former spy's excruciating death by radiation poisoning marks the beginning of an era of high-tech hit men who can kill from anywhere
9/11 fanned fears of more terror attacks by air. But our 95,000 miles of coast may be much more permeable. Here's the new defense strategy.
Sometimes our biggest fear is not knowing what to fear most. Fortunately, the weird science of risk analysis can teach us to judge better and fear smarter
Sensors built into cellphones could detect hazardous chemicals and spread the word to people nearby
Dogs are the best bomb detectors we have. Can scientists do better?
These elite nuclear divers are risking their lives to help save a troubled industry.
This is not the first time China's been called out for a cyber-security breach
Can science make us more secure? We put this query to a few thoughtful people.
Post-9/11 laws protect Americans from the mishandling of potential bioterror agents. They could also slow down some vital medical research.
Jellyfish invasions, Internet auctions, god particles: Read about the year's biggest science stories before they happen. Bonus: How to decipher geeky jargon and when to buy a DeLorean
We're two minutes to midnight. Again.
GE to develop "Biotic Man" to enable faster development of drugs
It's the ultimate nightmare: a nuclear attack in the U.S. masterminded by terrorists. Here's how that could happen-- and how we can prevent it
Last May, a massive tornado leveled Joplin, Missouri. Was it chance, or a warning of things to come?
Talking it out could make us less vulnerable.