Is Dallas a turning point in the race and policing debate?

If any good is to come out of the tragedy in Dallas, it is the expanded national conversation on the need for police reforms. There signs of some progress, but all sides agree much more must be done. Judy Woodruff talks with Rev. Jesse Jackson of Rainbow PUSH Coalition, Atlanta Mayor Kasim Reed, Julian Zelizer of Princeton University and Black Lives Matter activist DeRay Mckesson.