A era do protesto, interessante artigo de Friedman, no New York Times

http://www.nytimes.com/2016/01/13/opinion/the-age-of-protest.html?action=click&pgtype=Homepage&clickSource=story-heading&module=opinion-c-col-right-region&region=opinion-c-col-right-region&WT.nav=opinion-c-col-right-region&_r=0