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A new highly automated restaurant opening in San Francisco looks to speed service through efficiency. You won't see any people taking your order or serving you at eatsa, a fast-casual quinoa eatery.

"I can make jokes," Laura Welliver says, "because I've already had my good, long cry."

"I can make jokes," Laura Welliver says, "because I've already had my good, long cry."

Senomyx's new artificial ingredient promises to help reduce how much sugar Americans consume. But some scientists say we don’t know enough about its safety.

Airs Saturday, November 16, 2013 at 2 p.m. on KPBS TV

Months of training culminated with reaching the summit of a 16,500-foot peak, which they named. But there were frustrations and squabbles along the away, and uncertainties as they returned to Kabul.

Hillary Clinton tells Fresh Air the mechanism for such a challenge does not exist in the U.S. "and usually we don't need it." She also says she is "optimistic about our country, but I am not naive."

Hillary Clinton tells Fresh Air the mechanism for such a challenge does not exist in the U.S., "and usually we don't need it." She also says she is "optimistic about our country, but I am not naïve."

Just how much of the world's cropland can we really call urban? That's been a big mystery until now.

Even with the warm outflow from nearby power plants, it's an odd new habitat choice. Volunteers and researchers are working to study and track the population that's popped up in the San Gabriel River.