CHARLES KRAUTHAMMER:

We have heard everyone — from Obama’s own debt commission to the chairman of the Joint Chiefs of Staff — call the looming debt a mortal threat to the nation. We have watched Greece self-immolate. We can see the future. The only question has been: When will the country finally rouse itself?

Amazingly, the answer is now. Led by famously progressive Wisconsin — Scott Walker at the state level and Budget Committee chairman Paul Ryan at the congressional level — a new generation of Republicans has looked at the debt and is crossing the Rubicon. Recklessly principled, they are putting the question to the nation: Are we a serious people?

I’m thinking, I’m thinking!