We live in the age of the democratic image. Cell-phone cameras – along with YouTube, Facebook, Instagram, and all the other wonders of social media – have allowed citizens, and would-be citizens, from around the globe to reveal countless forms of oppression and the struggles against them. Think, for instance, of the photographs that poured out of Iran during the exhilarating Green Movement demonstrations of 2009. Although Iranian photographers were under attack and most of the foreign press had been expelled, the whole world was watching.