One of the ironies of the low quality of work that one often receives from college students is that they often put a tremendous amount of effort into attempting to get a higher grade after the fact. On more than one occasion I have told a student sincerely, "If you had put as much effort into doing the assignment as you have put into lobbying for a higher grade, this conversation would be unnecessary." It might sound sarcastic but it's absolutely true. In many cases they put a ton of effort into getting a good grade – they just don't allocate the effort wisely. Do it before the paper is due and it will benefit your grade a lot; afterward the same amount of effort is likely to accomplish nothing.
I mention this because I often wonder why police can't devote as much effort to doing their job properly as they do into covering up the things they do wrong. Some good old fashioned investigative reporting has uncovered a trail of Wikipedia edits on entries for Eric Garner, Sean Bell, Amadou Diallo, and other people killed by NYPD officers over the years, all coming from 1 Police Plaza. Editing Wikipedia is not the most labor intensive process on Earth (although honestly the more active pages are almost impossible to edit these days unless you've been involved for a long time) but there are quite a few of them spread out over time. If only there were something more useful to do with that time than search the internet and attempt to whitewash facts about things the department has done that cast it in a negative light.
Maybe this is for the best. They'd probably just do more stop-and-frisk if they didn't have the internet to keep them busy sometimes.