The veteran journalist who was anchor and managing editor of "Nightline" on ABC from 1980 until 2005 discusses his new book about the risk of cyberattack facing the power grid in the United States and the inadequate measures being taken to protect it.

Ted Koppel

The veteran journalist who was anchor and managing editor of "Nightline" on ABC from 1980 until 2005 discusses his new book about the risk of cyberattack facing the power grid in the United States and the inadequate measures being taken to protect it.