#CDUdigital Conference In Berlin

BERLIN, GERMANY - SEPTEMBER 12: A visitor uses a mobile phone in front of the Facebook logo at the #CDUdigital conference on September 12, 2015 in Berlin, Germany. The world's largest social media network was launched by Mark Zuckerberg and his Harvard College roommates in 2004, and had its initial public offering in February 2012. (Photo by Adam Berry/Getty Images)