As more conflicts shift from land to cyberspace, the nation's defense agencies are relying less on missiles and tanks and more on Silicon Valley technology entrepreneurs and startups to secure the country's porous Internet ...
The fate of the government's bulk collection of Americans' phone records is unclear following an FBI warning, House-Senate disagreements and more than 10 hours of criticisms by a GOP presidential candidate.
President Barack Obama will on Wednesday warn that a one-foot rise in sea levels could cost the United States as much as $200 billion, in a speech warning of the security risks of climate change.
A federal appeals court panel should not have forced YouTube to take down an anti-Muslim film that sparked violence in the Middle East and death threats to actors, a larger group of judges ruled Monday in a victory for free ...
The US House of Representatives voted Wednesday to end the NSA's dragnet collection of telephone data from millions of Americans, a controversial program revealed in 2013 by former security contractor Edward Snowden.
A new study shows U.S. President Barack Obama is still by far the most followed world leader on Twitter, but Pope Francis is considered the most influential by the number of his messages retweeted.
Emails to and from President Barack Obama were read by Russian hackers last year in a breach of the White House's unclassified computer system, The New York Times said Saturday.
US President Barack Obama will travel to Florida's Everglades Wednesday hoping to reframe the debate on climate change ahead of a vital few months that will shape his environmental legacy.
US President Barack Obama said Saturday that climate change poses the world's biggest single threat.
Six members of Congress toured a dusty tunnel and stood atop Yucca Mountain on Thursday during a trip led by a colleague who said the non-descript rocky ridge in the wind-swept desert outside Las Vegas would be a good place ...