Smartphone assistants like Siri will give you a national help line to call when you bring up suicide. But they have trouble recognizing other things, like rape or physical abuse. Michael Nagle/Getty Images hide caption

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Jun Tsuboike/NPR

Hey Siri, What Did You Say? Why Computers Still Mispronounce Names

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Siri's answer to the brain-teaser question "What's zero divided by zero" generates a response that people find both funny and unnerving. NPR hide caption

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Asked To Divide Zero By Zero, Siri Waxes Philosophical (And Personal)

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The Amazon Echo is Bluetooth-enabled and can play music from Amazon Prime Music or other music services. And it's ready to listen to your questions and commands. Amazon.com/AP hide caption

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