When President Barack Obama signed the American Recovery and Reinvestment Act of 2009 into law yesterday, he was adding to what is already almost guaranteed to be the largest deficit in American history. In January, the Congressional Budget Office projected that the deficit this year would be $1.2 trillion before the stimulus package. That's more than twice the deficit in fiscal 2008, more than the entire GDP of all but a handful of countries, and more, in nominal dollars, than the entire United States national debt in 1982.

But...