When it comes to preventing shootings at the workplace, background checks before hiring employees are just the first step.

Can consumers really do anything to force Internet and telecommunications companies to fight back against government tracking of personal data?

Verizon is reportedly handing the National Security Agency data on every customer's calls. So how does the government go about finding needles on the digital haystack?

After Boston, surveillance cameras are hot sellers, and it's not just businesses that are buying.

How cell phone and surveillance video is gathered and and processed to find clues, and track the perpetrators of the fatal attack in Boston.

The Transportation Security Administration has announced a policy change that would allow airline passengers to carry small knives and sports equipment onto planes, beginning next month. Flight attendants and air marshals protested.

Because of an insurance dispute, after all these years, a jury may take on the question of whether airlines' poor security was responsible for the World Trade Center disaster.

AntiSec claims it stole data off an FBI laptop, the Bureau denies it. What does it mean for you?

Oracle announces a new patch for its Java software.

You should change your Yahoo passwords and you should pay attention to a hugely well-funded game console.