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European leaders resolved Friday to revisit safety at nuclear reactors as emergency workers in Japan suffered radiation burns and rising global fears of food contamination hit home.

A new report on young people's use of social networking and cyber safety reveals that young people may be more aware and better able to manage online risks than their parents commonly think.

A curtain of flame halts firefighters trying to rescue a family inside a burning home. One with a special backpack steps to the front, points a wand at the flame, and shoots a beam of electricity that opens a path through the flame for the others to pass and lead the family to safety.

The world on Tuesday marks a quarter century since the world's worst nuclear disaster at Chernobyl in Ukraine, haunted by fears over the safety of atomic energy after the Japan earthquake

It's an unfamiliar neighborhood and you find yourself in the middle of a bunch of streets and buildings you've never seen before. Giving the environment a quick once-over, you make a snap decision about whether you're safe or not. And chances are, that first 'gut' call is the right one, say Binghamton University researchers Dan O'Brien and David Sloan Wilson in an article published in the current issue of Journal of Personality and Social Psychology.

The feeling of security and the reality of security don't always match, says computer-security expert Bruce Schneier. He explains why we spend billions addressing news story risks, like the "security theater" now playing at your local airport, while neglecting more probable risks - and how we can break this pattern.