Outgoing Pentagon chief Leon Panetta
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North Korea nuclear test 'a serious threat' to US

12 February 2013 Last updated at 16:03 GMT

North Korean military ambitions are a "serious threat" to the US, outgoing Pentagon chief Leon Panetta has said.

In a speech made after Pyongyang carried out its third nuclear test, Mr Panetta likened the North to Iran, saying: "We're going to have to be prepared to deal with that."