2 Killed As 2 Bombs Explode at Boston Marathon [HD]

The US said it would soon send a missile defence system to Guam to defend it from North Korea, as the US military adjusts to what Defense Secretary Chuck Hagel called a "real and clear danger" from Pyongyang.
THE PENTAGON - There were more threatening words -- and actions -- Wednesday from North Korea. The country says it's leadership has approved plans for a nuclear strike on the United States.

2 Killed As 2 Bombs Explode at Boston Marathon [HD]
http://www.youtube.com/watch?v=asURhCPtANY