A listener prompts us to reach back into a long-ago time before iPods and Zunes. We give you what may be the first podcast designed to be played on the Sony Walkman, complete with appropriate music. Also, an exclusive interview with Andrew Lih, author of a new book on Wikipedia. And we reach back into an even more distant past to hear how technology is helping track down perpetrators of serious crimes in the era of Guatemala's civil war.

Download WTP 237