It’s an ill wind that blows nobody good, and the crisis in Greece is making some people — people who opposed health care reform and are itching for an excuse to dismantle Social Security — very, very happy. Everywhere you look there are editorials and commentaries, some posing as objective reporting, asserting that Greece today will be America tomorrow unless we abandon all that nonsense about taking care of those in need.

The truth, however, is that America isn’t Greece — and, in any case, the message from Greece isn’t what these people would have you believe.

So, how do America and Greece compare?

Both nations have lately been running large budget deficits, roughly comparable as a percentage of G.D.P. Markets, however, treat them very differently: The interest rate on Greek government bonds is more than twice the rate on U.S. bonds, because investors see a high risk that Greece will eventually default on its debt, while seeing virtually no risk that America will do the same. Why?

One answer is that we have a much lower level of debt — the amount we already owe, as opposed to new borrowing — relative to G.D.P. True, our debt should have been even lower. We’d be better positioned to deal with the current emergency if so much money hadn’t been squandered on tax cuts for the rich and an unfunded war. But we still entered the crisis in much better shape than the Greeks.