33: Muzak listening, and Alexa eavesdropping

We have two stories this week: first, the surprising history "elevator music." Turns out, Muzak was a real company. And then we reveal how much Amazon's Alexa and other smart speakers are really listening — and remembering what we do and say.

Sign up for our newsletter: http://newsletter.businessinsider.com/join/brought-to-you-by

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.