The United States government isn't saying whether it's responsible for the reported collapse of internet service in North Korea.
The US President Barack Obama has promised to respond to the high-profile cyber attack on Sony Pictures, which US officials have blamed on the regime in Pyongyang.
But, as Malcolm Brown reports, the US side is being tight-lipped about the cause of widespread internet outages in North Korea.
IN: "Given Washington's…
OUT: SOC
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ADD/ALT: US State Department spokeswoman Marie Harf is calling on North Korea to take responsibility for the Sony attack
IN: "We are...
OUT: …they caused"
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