On MSNBC’s Morning Joe, Mike Barnicle talks with The Washington Post’s Carol Leonnig about her reporting on the FBI’s investigation into the security of Hillary Clinton’s private e-mail setup and a thumb drive in possession of her lawyer that contains copies of work e-mails sent during her time as Secretary of State. “Was there any point of vulnerability about this [server] issue that was raised by any of your sources?,” asks Mike. Listen to Leonnig expand on her story and the authorities’ concerns over having delicate State Department material hosted on Clinton’s private servers.