Sony hacking stirs US-North Korea diplomatic storm

PRESIDENT Barack Obama declared on Sunday that the US was considering putting North Korea on its list of state sponsors of terrorism following the cyber attack against Sony Pictures Entertainment. While Mr Obama said that the cyber move was not an "act of war", as Republican Senator John McCain has declared, he has pledged that Washington will respond at a time and manner of its own choosing.

This latest twist in what is becoming a significant diplomatic incident follows Pyongyang's offer on Saturday to host a joint inquiry with Washington into the att…