Wednesday, 27 December 2017

New top story on Hacker News: DC police used sonic cannon to direct crowd flow during Women's March

DC police used sonic cannon to direct crowd flow during Women's March
147 by anigbrowl | 100 comments on Hacker News.

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Item Reviewed: New top story on Hacker News: DC police used sonic cannon to direct crowd flow during Women's March Rating: 5 Reviewed By: Aneeque Rauf

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