North Korea to Join Hand with U.S. to Probe Sony Hacking

Do you know the U.S. Government had earlier attacked the North Korea Government over the Hacking of the Sony Pictures Entertainment?.....It is a serious matter no jokes. In Washington, a spokesman for the White House National Security Council, Mark Stroh, said the U.S. stands by the FBI's conclusion that "the North Korean government is responsible for this destructive attack."
The U.S. officials blame North Korea for the hacking, citing the tools used in the Sony attack and previous hacks linked to the North, and have vowed to respond. The break-in resulted in the disclosure of tens of thousands of confidential Sony emails and business files, and escalated to threats of terror attacks against U.S. movie theaters in response of the attack from the US government, The North Korea proposed a joint investigation with them soundiing serious warning,consequences if Washington rejects a probe that it believes would prove Pyongyang had nothing to do with the cyberattack. In a lasted developement Sony Canceled the Christmas Day release of "The Interview," a comedy about a plot to assassinate North Korean leader Kim Jong Un... There is more to this oh!
According to AP News The proposal was seen as a typical ploy by the North Korea to try to show that it is sincere, even though it knows the U.S. would never accept its offer for a joint investigation.
Waiting more Reaction from the White House , will keep you posted .