Preview: The Nightmare Scenario

The threat from North Korea isn't just a war of words for the troops of U.S. Pacific Command. For "CBSN: On Assignment," correspondent Vladimir Duthiers goes inside the Air Force, Army and Navy operations where American service members are preparing to respond with "rapid, lethal, and overwhelming force" if called upon to fight.


(Source: CBS News, https://www.youtube.com/watch?v=O2em-1U7zGY)