Joint Chiefs of Staff Chairman Explains US Military Role in Haiti Relief Effort Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email Navy Adm. Mike Mullen, Chairman of the Joint Chiefs of Staff, talking to John Hockenberry at the Pentagon on Wednesday ( Jim Colgan/The Takeaway / WNYC ) Produced by Jim Colgan and Rob Hugh-Jones Produced by PRI and WNYC