Imagine a nuclear threat to another nuclear nation and no way to communicate? Believe it or not communications can be hacked and most nations have no direct communications in a crisis at all. 

On this Back Story with Dana Lewis, talks with former British  Rear Admiral John Gower, on nuclear threats and communication as the single biggest component of averting war, and Philip Reiner of the U.S. Institute for Security and Technology on a newly proposed nuclear hotline for nations with nuclear weapons.