Tom Gjelten

The U.S. performance on the global stage has looked a little rocky in the past few weeks.

The Obama administration had to let Russia take a lead in managing the security challenge in Syria. The United States was also embarrassed when allies like Germany, France and Brazil reacted angrily to ...

Four months have passed since former National Security Agency contractor Edward Snowden began spilling secrets about the NSA's surveillance programs, but many Americans still don't know what to think about the disclosures.

For good reason. The surveillance programs are highly technical, involving the bulk interception of huge volumes of communication ...

The prospect of a military strike against Syria in the next few days has private U.S. firms bracing for retaliation — in cyberspace.

A group calling itself the Syrian Electronic Army has already gone after some U.S. targets, including The New York Times, whose website was taken down for ...

In the 10 years since sagging power lines in Ohio sparked a blackout across much of the Northeastern United States and Canada, utility engineers say they have implemented measures to prevent another such event in the country's electric grid.

But there is one disaster scenario for which the power companies ...

The disclosure of of previously secret NSA surveillance programs has been met by outrage in Europe. The European Parliament even threatened to delay trade talks with the United States.

Yet U.S. officials have dismissed much of the complaining as hypocrisy. Before the House rejected legislation that would have limited ...

The disclosure of previously secret National Security Agency surveillance programs has left many Americans worried that the privacy of their personal data and communications is in jeopardy.

In an apparent effort to alleviate those concerns, a senior administration official said President Obama's Privacy and Civil Liberties Oversight Board is ...