Angus King actually said...

"I believe that this country needs a clear doctrine: What is a cyber-attack, what is an act of war, what will be the response, what will be the consequences?"

"We have to have a doctrine of deterrence. If they strike us in cyber, they are going to be struck back in some way."

"We cannot confront this threat, which is a serious one, with a whole of government response when the leader of the government continues to deny that it exists."

"But deterrence doesn't work unless the other side knows it."