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Fred Kaplan, author of Dark Territory, traces the history of cyber defense into the current heated debate between the FBI and Apple over the encryption of the iPhone.

Airs Saturday, May 3, 2014 at 2 p.m. on KPBS TV

The shootings in San Bernardino have raised a familiar question, one that a linguist and a political scientist say keeps coming up because the line can be tough to draw.

New research shows that teenagers' brains aren't fully insulated, so the signals travel slowly when they need to make decisions. Neuroscientist Frances Jensen, who wrote The Teenage Brain, explains.

The worm infects 740 million people and causes anemia and loss of protein. A vaccine is in the works. And some brave souls are testing it out by ... getting infected with hookworm.

Scientists assume a wave of people from what's now Siberia crossed into North America via Alaska, maybe 23,000 years ago. Genetics support that, but may also suggest another wave from Australasia.

A lot of American adults aren't sitting down to breakfast anymore — they're eating on the go. And what we eat in the morning is likely more important then when we eat it.

The biggest honors in television will be handed out Sunday night. This year's ceremony comes at a turning point for the awards and the TV industry in general.

College students around the country are lining up to take classes like a new one at NYU called "Black Lives Matter: Race, Resistance, and Popular Protest."

With the U.S. falling behind our foreign competitors in science, technology and engineering, experts say there's no time more crucial to attract young students to the fields.