Katrina vanden Heuvel - Editor & Publisher of The Nation | Lowell Bergman - Reva & David Logan Distinguished Chair in Investigative Reporting at UC Berkeley Graduate School of Journalism | Patrick Lawrence - Foreign Affairs Columnist at Salon & Contributing Commentator at The Fiscal Times | John Tirman - Executive Director & Principal Research Scientist at MIT's Center for International Studies. How can the U.S. media more effectively challenge the official D.C. narrative on national security, and why is this so important?