Can Obama’s plan ‘defeat and destroy’ the Islamic State?

The White House has announced it will send more troops to fight the Islamic State group in Iraq. To discuss the multi-front war with the militants, Judy Woodruff talks to Michèle Flournoy of the Center for a New American Security, retired Col. Andrew Bacevich of Boston University, former Secretary of Defense Leon Panetta and retired Gen. Anthony Zinni, former commander of the U.S. Central Command.