10/16: Obama, Romney prepare for 2nd debate; memorial for Amb. Stevens

      |Mitt Romney and President Obama prepare to go head-to-head for the second time amid surprising new polling information. How will the candidates handle the town hall format?; And, UN diplomat Peter Bartu worked closely with former Ambassador Christopher Stevens through the Libyan rebellion. Bill Whitaker spoke with Bartu on what made Stevens a stabilizing force in an unsettled part of the world.

      Related Videos