Obama says confronting Syria is challenge for the world

At a meeting in Stockholm, Sweden, President Obama said that confronting Syria over its use of chemical weapons is a challenge for the world, not just his White House. This is happening while meetings in both chambers of Congress are looking at a resolution to authorize U.S.-led air strikes. Deputy National Security Advisor to President Obama Tony Blinken, NBC Chief White House Correspondent Chuck Todd, The Washington Post’s Chris Cillizza, and Washington Post Diplomatic Correspondent Anne Gearan join Andrea Mitchell.Sept. 4, 2013