Remember the social media crowd sourcing frenzy after the 2013 Boston marathon bombing? In the period after the marathon was bombed and before the big GTA style car chase and shootout, Reddit and other types of social media went into a frenzy scanning photos to try to find suspects. I remember social media was 99% sure that this Indian male who had threatened to kill himself and had gone missing for 30 days prior was the culprit. Another suspect was a Moroccan teen, I presume because he was a Muslim and may have looked 'suspicious'. Despite the good intentions, it was a huge failure on the part of social media.