Mark Zuckerberg, the co-founder and chief executive of Facebook, likes to say that his Web site brings people together, helping to make the world a better place. But Facebook isn\u2019t a utopia, and when it comes up short, Dave Willner tries to clean up.<\/p>\n
Dressed in Facebook\u2019s quasi-official uniform of jeans, a T-shirt and flip-flops, the 26-year-old Mr. Willner hardly looks like a cop on the beat. Yet he and his colleagues on Facebook\u2019s \u201chate and harassment team\u201d\u009d are part of a virtual police squad charged with taking down content that is illegal or violates Facebook\u2019s terms of service. That puts them on the front line of the debate over free speech on the Internet.<\/p>\n
That role came into sharp focus last week as the controversy about WikiLeaks boiled over on the Web, with coordinated attacks on major corporate and government sites perceived to be hostile to that group.<\/p>\n