To a point this is already happening with cell phone cameras and social media. Lots of people were identified in the 2011 Vancouver Stanley Cup riot [1] due to

To a point this is already happening with cell phone cameras and social media. Lots of people were identified in the 2011 Vancouver Stanley Cup riot [1] due to pocket cameras and cellphone pictures/video. [1] http://en.wikipedia.org/wiki/2011_Vancouver_Stanley_Cup_riot#Social_media http://en.wikipedia.org/wiki/2011_Vancouver_Stanley_Cup_riot...