Facebook CEO Mark Zuckerberg says his thinking has “evolved” on how to balance free speech and the harms of Holocaust denial.

NEW YORK, NY – OCTOBER 25: Facebook CEO Mark Zuckerberg speaks about the new Facebook News feature at the Paley Center For Media on October 25, 2019 in New York City. Facebook News, which will appear in a new dedicated section on the Facebook app, will offer stories from a mix of publications, including The New York Times, The Wall Street Journal and The Washington Post, as well as other digital-only outlets.(Photo by Drew Angerer/Getty Images)