E-translators: the more you say, the better

It's the holy grail of translation, a goal one researcher has called "more complex than building an atomic bomb." Smooth, immediate translations between people speaking different languages would be a remarkable achievement of enormous economic and cultural benefit. Some suggest that it won't happen until computers can express true artificial intelligence - something like C-3PO of "Star Wars" fame, whose knowledge extends far beyond mere vocabulary to an understanding of customs and cultures. Still, researchers are chipping away at the problem. Universal translation is one of 10 emerging technologies that will affect our lives and work "in revolutionary ways" within a decade, Technology Review says.