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Standing in front of the Constitution, President Obama delivers an address on national security and terrorism in 2009 at the National Archives in Washington.

Obama Team Stops Saying 'Global War On Terror' But Doesn't Stop Waging It

When President Obama took office, he changed the rhetoric from the Bush years. But he never abandoned the idea of global war — a concept with profound legal implications.

China Calls For Rules, U.S. Calls For End Of Cyberattacks

In separate events, high ranking officials from both sides called for rules regarding hacking. China also continued to defend itself against accusations that it was behind the hacking of dozens of American companies.

North Korea's rhetoric has been particularly aggressive recently, but analysts say it remains difficult to gauge the country's intentions and its military capabilities.

How Credible Are North Korea's Threats?

North Korea has been ratcheting up the rhetoric against South Korea and the United States. Analysts say the secretive nature of the country make it difficult to judge its intentions and capabilities, however.

Afghanistan National Army soldiers and security personnel walk at the site of a suicide attack next to the Ministry of Defense main gate in Kabul on Saturday.

With Hagel In Afghanistan, Explosion Hits Near Defense Ministry

A bomb exploded near the Defense Ministry in Kabul Saturday morning as U.S. Defense Secretary Chuck Hagel is visiting in Afghanistan. The Taliban claimed responsibility, calling it a message to the new Pentagon chief.

Guy Builds Solar-Powered Death Ray In His Backyard (Yawn)

What are you doing this weekend? Bet you're not using scraps from an old Toshiba TV to melt stacks of metal coins into steaming-hot foam. No? I thought not. (But we are.)

Baxter is billed by its makers as a "collaborative manufacturing robot." It can work alongside humans to do simple, repetitive tasks.

Could This Robot Save Your Job?

Baxter can work alongside humans to do simple, repetitive tasks. Some analysts fear such automation will kill jobs but Baxter's inventor says such robots could keep the U.S. competitive.

Where The Water Comes From

Removing one Cedar tree from your property can keep 40 gallons of water in the ground per day; that's 14,600 gallons per year of a resource that is…

Lisa Rubenson of Charlotte, N.C., wrote our Round 10 winning story, "Sorry for Your Loss<em>."</em>

Three-Minute Fiction: The Round 10 Winner Is ...

Did you leave a message after our prompt? For Round 10 of Three-Minute Fiction, we asked you to submit a short story in the form of a voice mail message.

Code Pink activists deliver flowers, candies and other objects of thanks to Sen. Rand Paul's Capitol Hill offices Thursday for filibustering John Brennan's CIA nomination.

When Rand Paul Ended Filibuster, He Left Drones On National Stage

The senator launched a nationwide conversation when he challenged the president's pick to lead the CIA. He vowed to keep talking until the White House clarified whether it has authority to kill U.S. citizens on American soil with drones. He finally stood down, but the debate is far from over.

Historians think poi, a sticky, nutritious food made from pounded taro root, has been eaten in the Hawaiian islands since the time of the ancient Polynesians.

Poi: Hawaii's Recipe For Revitalizing Island Culture

With only about 1,000 full-blooded Hawaiians left in the world, preserving native island culture is a huge challenge. One way to do this: teach students and other island residents the ancient art of making poi, a dish that's been feeding native Hawaiians for centuries.

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