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U.S. and European security services are struggling to track Western nationals who travel abroad to receive training from Al-Qaeda and its allies and then return to try to carry out attacks.

GW's Daniel Kaniewski, deputy director of the Homeland Security Policy Institute, says that by effectively marshaling and mobilizing all resources, whether they be foreign governments or private sector organizations from all over the world, Chile has handled the mining crisis much better than the…

Improvised explosives are the weapon of choice for terrorists and will continue to be a threat because they are so difficult to detect.

New research predicts that the U.S. obesity rate won't level off until it reaches at least 42 percent, in 2050.

The Transportation Security Administration recently announced plans to overhaul passenger and cargo screening methods in the wake of the bomb plot from Yemen.

National Opt-Out Day, a protest ignited by new passenger-screening techniques at airports, appeared to fizzle as security lines moved smoothly with many passengers walking through full-body X-ray machines with few issues.

A new analysis shows the presence of a probable carcinogen in the tap water of 31 cities across the country, raising questions about possible risks posed to consumers and how they can reduce their exposure.

Performing surgery on babies with the most severe form of spina bifida when they are still in the womb doubles the chance that they will be able to walk, according to a study that was coordinated by GW researchers.

Despite the popularity of health applications, or "apps," for mobile phones, there has been little research on how well apps work, or if they comply with known public health guidelines on how to change people's behaviors.

Congress is threatening to cut more than a billion dollars for community health clinics, a move that would force centers across the country to cut back many services.