U.S. 'Poised to Respond' to N. Korean Threats

President Obama and the White House are taking threats seriously.
01:25 | 04/04/2013

Transcript for U.S. 'Poised to Respond' to N. Korean Threats

It sure d. Okay, martha, thanks. More from our chief white house correspondent jonathan karl. Jon, a delicate balancing act. They want to deter north korea, defend against the possible attack but have... See More
This transcript has been automatically generated and may not be 100% accurate.
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