The chief news editor at National Public Radio has left the outlet following allegations of sexual harassment.NPR Chief News editor David Sweeney is "no longer on staff," Chris Turpin, acting senior vice president of news, said in an email to staff, NPR News reported on Tuesday."This is a difficult time for our newsroom and I'm committed to supporting all of you as we move forward," the email said. ADVERTISEMENT "I know you appreciate that there are some questions I cannot answer in keeping with our practice to not comment on personnel issues, but I will do my best to address those...