Command Post: "Cyber War: Fact or Fiction?"

Defending against the invisible menace of online cyber-attacks has become one of the Pentagon's biggest growth areas. But should it be? Kristin Lord of the Center for a New American Security, who recently led a study into the issue, discusses the balancing act associated with this new way of war. She's joined by colleague John Nagl, cyber expert James Lewis of the Center for Strategic and International Studies, and yours truly.