FL#197: Following the crowd with Populace

The startup Populace uses data from social media and other sources to display crowd densities at various locations across urban areas. As a result, the system could make it possible for journalists to find out automatically whenever an unusually large crowd gathers in a public place. We find out how it works from founder and Chief Executive Officer Chris Hawk.

Reporting by Lindsey Miller, Rachel Wise and Jessica King.

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