WSJ.com: WSJD 1 April 2018

After the Facebook Data Scandal, Can Users Have Too Much Privacy?

Regulators are grappling with privacy questions about encrypted apps like Signal and Telegram, which assure users of complete security but also can allow terrorists to go undetected.

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3-D Printed Buildings Are a Tech Twist on Ancient Construction Techniques

Using 3-D printers to build concrete jail cells, foam homeless shelters and earthquake-proof bungalows is a promising, if still unproven, construction technology.

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Tesla: Autopilot Was Engaged in Fatal Crash in California

Tesla acknowledged its semiautonomous Autopilot system was engaged by the driver in the seconds before a fatal crash last week, raising more questions about the safety of self-driving technology on public roads.

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How Apple, Amazon, Pandora and More Are Trying to Gain on Spotify

Spotify is the global leader in music streaming, but several competitors are working to differentiate their service to win over artists and listeners.

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