A protester reacts as police use water cannon during a demonstration to demand changes in the Chilean education system in Santiago, Chile June 25, 2015. (Photo by Ueslei Marcelino/Reuters)
A model uses a hat to cover her face as stylists apply hairspray backstage before the Ashish Spring/Summer 2016 collection during London Fashion Week in London, Britain September 22, 2015. (Photo by Suzanne Plunkett/Reuters)