Is fake news undermining the truth? That question, hashed out by Berkeley and industry experts, drew a crowd that filled Banatao Auditorium’s seats and spilled into the aisles Thursday night. Speaking were: Adam Mosseri, Facebook’s vice president of news feed, who manages the team responsible for delivering relevant content to the 1.8 billion people using Facebook, and has recently focused on addressing fake news on the platform. Craig Newmark, a web pioneer, speaker and philanthropist who recently donated $1 million to the Poynter Institute for Media Studies to promote verification, fact-checking and accountability in journalism. Laura Sydell, National Public Radio’s digital culture correspondent whose interview with the owner of Disinfomedia, a company with many faux news sites, aired in November. ...