When Hurricane Harvey wreaked destruction in Houston last August, the country turned not just to cable television, but also to Snapchat. Two months before the storm, the social media app had debuted Snap Map, a crowdsourced, interactive feature that displays what’s happening on Snapchat around the world. At launch, Snap Map seemed mostly like a fun toy, albeit one with potential privacy implications; Snap Map can broadcast your location to your friends if you opt in.
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