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Dallas Continues Mourning While Still On Edge

People in Dallas continued to pay respects to five police officers killed in Thursday's shootings. Many left cards and flowers at a memorial at police headquarters. But the city is still on edge.

Senate's Immigration Reform Bill Is Declared Dead At One Year Old

The Obama administration is backing away from plans to loosen deportation guidelines. On the eve of the one-year anniversary of the Senate's passage of a comprehensive immigration reform bill, reform advocates concede any changes in immigration laws likely won't come until 2017.

Scammers Turn To Caller ID 'Spoofing' To Pose As Police

There's a new kind of phone scam on the rise: fraudsters using fake numbers to pretend they're calling from the local police department. And there's little the real police can do about it.

This is a calculated flood map for the city of St. Louis. Water depth goes from deep (dark blue) to shallow (white, light blue). Floodwater can come from the Illinois, Upper Mississippi and Missouri rivers, as well as from heavy local precipitation.

Flood Maps Can Get Much Sharper With A Little Supercomputing Oomph

Entrepreneurs are turning to Oak Ridge National Lab's supercomputer to make all sorts of things, including maps that are much more accurate in predicting how a neighborhood will fare in a flood.

Student Course Evaluations Get An 'F'

Two recent papers argue that using student surveys to evaluate professors is fundamentally flawed.

Internet service providers are having trouble keeping pace with growing demand for video streaming services. But there's disagreement over how to fix the problem.

Video Streaming Is Straining, But Who Will Ease The Tension?

Services like Netflix take up a lot of bandwidth, and their increasing popularity is fueling a dispute between these companies and the Internet service providers that carry them.

Kenyan security officers rounded up people Friday as part of a crackdown that has swept up thousands of undocumented refugees, immigrants and Kenyan citizens of Somali descent in recent weeks.

Somalis In Kenya Are Used To Raids, But They Say This Was Different

A police sweep after Friday prayers is the latest in a weeks-long crackdown against terrorism. The operations have pulled in thousands of refugees, immigrants and Kenyan citizens of Somali descent.

A pro-Russian activist speaks at the Security Services building, which was seized in Luhansk, eastern Ukraine. The standoff is one of three taking place in the region, and Luhansk is considered particularly volatile because the Security Services building contains many weapons.

Ukrainian Protesters Seize Weapons, Raising The Stakes

Pro-Russian demonstrations have led to standoffs in three Ukrainian cities. The confrontation is considered especially dangerous in Luhansk, where protesters took over a building filled with weapons.

Syrian military soldiers check identifications and search vehicles at a checkpoint on Baghdad Street in Damascus, Syria, on Aug. 21.

On A Razor's Edge In Damascus

The atmosphere in Damascus is increasingly tense and fearful as the Syrian government seems to have kicked into high gear to protect itself. Many residents say their city feels as if it's come under foreign occupation since the U.S. indicated it might carry out a military strike against Syria.

Netflix CEO Reed Hastings delivers a keynote address at the 2016 CES trade show in Las Vegas. Big entertainment rival Disney could challenge the service that made binge-watching popular.

Is Netflix On Its Way To World Domination Of Streaming?

Netflix flew past Wall Street expectations and added 7.4 million subscribers globally in the first quarter. But a big entertainment rival could challenge the service that made binge-watching popular.

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