Ferguson and the Black Lives Matter protests sparked concern about the excessive use of force by law enforcement. Now, activists are shining a spotlight on the fact that the government doesn't do a good job of collecting data when it comes to officer-involved shootings. To fill that gap, a handful of groups are trying to crowd-source the information. Matthew Green, editor of KQED blog "The Lowdown" joins us to talk about the issue.
Police in California Killed More than 150 People in 2014, Crowd-Sourced Data Show
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