Facebook Inc. Chief Operating Officer Sheryl Sandberg said no one should have to go to work fearing sexual harassment, and one way to eliminate that fear is for companies to have a zero-tolerance policy for such behavior. "I think it's great when people lose their jobs when it happens, because I think that is what will get people to not do it in the future," Sandberg said in an interview with Bloomberg Television's Emily Chang. "And I think this is a leadership challenge. As a leader of a company, there needs to be no tolerance for it."