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The undercover cop was attempting to drive his Hummer down a snow-covered street when revellers pummelled the vehicle with snowballs; he then got out of the car and pulled his gun out, presumably as a way to scare off the crowd.
Being a Twitter-organized event, of course, there were plenty of Tweets, a couple photos and even a video of the incident (below). D.C. police are investigating, reports The Washington Post.
[images via CityPaper]
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