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They are being hailed as a technological solution to bad police-community relationships, but research on the cameras' impact is thin, and some departments are dealing with unintended consequences.

Aqua-Spark is the world's first investment fund for sustainable aquaculture. So far it has bet on an alternative fish feed that could take pressure off the oceans and a tilapia farm in Mozambique.

The wrestlers say World Wrestling Entertainment downplayed dangers in the ring. The WWE says it has "never concealed any medical information related to concussions."

We're learning more about the comet that a European Space Agency paired up with its Rosetta probe last fall. For one thing, it has "goosebumps" on steep cliff faces. It's also highly porous.

A group of prominent scientists uses the clock as a symbol of imminent disaster for humanity. It moved toward catastrophe — midnight — because of climate change and nuclear proliferation worries.

On this week's show, the Comedy Central half-hour Broad City and the many hours we spent reading classics because we had to. (And sometimes wanted to.)

Their annual letter to the public has been published. They're betting that in 15 years, polio will be eradicated, Africa will feed itself and 2 billion people will use their phones as mobile banks.

The brand new chairman of the National Republican Senatorial Committee, Sen. Roger Wicker was the only senator to vote against calling climate change "real and not a hoax."

Alberto Nisman, who accused the Argentine leader of covering up Iran's role in a 1994 terrorist attack, was found shot dead in his apartment on Sunday.

Luke Whitworth, 23, came to Guinea from South Carolina 13 months ago. That's when the outbreak there began. His sponsoring group gave him the option to leave — but he's determined to stay.