Today is the 75th anniversary of Orson Welles' "War of the Worlds" broadcast. Although information has emerged recently putting into doubt the reality of the so called "mass-hysteria" it caused, it still remains a landmark event in broadcasting history.

To commemorate this occasion, R.H. Greene, producer of the documentary "War of the Welles" joins us to discuss the immediate impact and long-term legacy of Welles' work.