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Engineers have developed a low-cost material that efficiently sterilizes and desalinates water using only solar energy. The secret to the new technology is likely sitting right on your desk.

The U.S. Justice Department has decided not to prosecute Rupert Murdoch's media companies for their role in a cellphone voice mail hacking scandal.

National sorority leaders have told members at the University of Virginia not to attend a multi-frat Bid Night party after a discredited article about a gang rape.

In South America, left-wing governments hostile to the U.S. are tossing out diplomats or shunning them entirely. In Ecuador, U.S. Ambassador Adam Namm is using music to do something about it.

Activists say that about 175,000 students refused to take federally mandated tests last week.

At the annual Schools Expo in February, families tried to match their needs with the best schools under the city's choice system. This month, they'll find out where they've been assigned.

David Greene talks with Sylvain Groulx, head of mission for Doctors without Borders in the Central African Republic, about the state of the violence there and the hopes for peace now that French troops have arrived.

In the wake of violent clashes between protesters and police in Ferguson, Mo., President Obama is ordering a review of the federal programs that help local police departments purchase military gear.

Some argue that workers should be able to move more freely in a global economy. But others push back, saying an influx of labor into the richest countries would devalue workers' worth and actually hurt more in the long run. A group of experts debates for Intelligence Squared U.S.

Medical tourism was expected to be huge in 2013, and countries like Colombia, which has seen huge improvements in safety and tourism, decided they wanted in on the action. In recent years they've been building facilities specifically designed for medical tourists. But the numbers have not quite met projections.