Fallout from the crippling cyberattack on Sony Pictures continues.And a new country is now involved in all of this ― China.The Obama administration has reached out to the People's Republic for help in preventing future North Korean hacks.So far, Chinese officials have not responded.Meanwhile, North Korea still denies any involvement in the Sony hack, even as the FBI pointed the finger at them Friday.North Korea has issued a proposal for a joint investigation into the incident. The U.S. isn't interested.And President Obama now says he will review whether to put North Korea back on the list of state sponsors of terrorism.Victor Cha joins me now in studio for more.He is a professor at Georgetown University, and he served as director for Asian affairs at the National Security Council under President George W. Bush.Welcome, Victor.Thank you.The FBI says it is confident the hack came from North Korea.Is that realistic? Could North Korea pull this off?Well, you know, we didn't think they could beforehand.The things that we've seen from them ― the attacks against the South Korean businesses and media have been much more primitive kind of attacks ― DDOS, denial of service attacks.This was clearly a step up. And I think for many, it was surprising.What about the response from Pyongyang ― to ask for a joint investigation with the U.S., do you find that surprising?Why not just take credit for it?Yeah. It's a good question. I mean, it's part of North Korean behavior.I mean, they do these sorts of things and then try to deny them, but at the same time applaud them.
