Last Week Tonight Last Night

If you didn't see Last Week Tonight with John Oliver last night, his Main Story was on surveillance technology that police use. It's a very interesting story, filled with humor, that details not just how new technology is used by police -- like cameras, microphones, license plate readers, "shotspotters" and cell-site simulators -- and how they're not just being abused, but are often extremely inaccurate.

https://www.youtube.com/watch?v=lnBPhelCdWE