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Your inbox overflows with spam, so what else is new? But have you ever wondered how junk email got its name? And where all of it comes from? Finn Burton, author of Spam: A Shadow History of the Internet describes the spam business, how it's become a criminal enterprise and how you can protect yourself online.

Airs Wednesday, May 11, 2011 at 10 p.m. on KPBS TV

Many prosecutors complain that shows like CSI make their job harder, as jurors demand ultra-high-tech tests to convict suspects. But an investigation by NPR, PBS Frontline and ProPublica has exposed how death investigation in America is nothing like what you see on TV.

Law and national security experts got together last weekend for a dogfight they call the Drone Smackdown. The contest, though tongue in cheek, still raised lots of questions about the proliferation of drones, the rules of combat and federal efforts to regulate them.

At a time when higher education in California is bracing for some of the most severe budget cuts ever, it's important to remember the history and commitment that have created California's renowned university system. UC San Diego, which began as an offshoot of Scripps Institution of Oceanography, is celebrating its 50-year anniversary.

The Marine Corps launches an exercise off the coast of Camp Pendleton this week designed to brush up on skills they haven’t used for a while.

Twenty years ago, when brain imaging made it possible for researchers to study the minds of violent criminals and compare them to the brain imaging of "normal" people, a whole new field of research -- neurocriminology -- opened up.

The educational division of the media conglomerate News Corp, called Amplify, unveiled a new digital tablet this week at the SXSW tech conference in Austin, Texas, intended to serve millions of schoolchildren and their teachers across the country.

Psychologists trained specifically to help cancer patients assist them in dealing with the emotional challenges, and the transition to a "new normal."

In 1543, when Nicolaus Copernicus made the astounding claim that Earth revolves around the sun, not the other way around, his ideas were met with scorn. "It went against everything that your senses tell you. It went against common sense," says author Dava Sobel, who wrote a new book about the astronomer.