Zuckerberg speaks

Mark Zuckerberg, Facebook's normally press-shy CEO, has launched a public relations offensive. Last Thursday, Zuckerberg gave a speech at Georgetown University. The next day, he appeared on Fox News. And last night, Zuckerberg was interviewed by Lester Holt on NBC News. 

In his public appearances, Zuckerberg says he is championing free speech, upholding …