Here's a great source for information on the stimulus and what Leonhardt thinks we should do.
Key quote--note the bold I've added:
So for the first time in more than 70 years, the epicenter of the American economy can be placed outside of California or New York or the industrial Midwest. It can be placed in Washington. Washington won’t merely be given the task of pulling the economy out of the immediate crisis. It will also have to figure out how to put the American economy on a more sustainable path — to help it achieve fast, broadly shared growth and do so without the benefit of a bubble. Obama said as much in his inauguration speech when he pledged to overhaul Washington’s approach to education, health care, science and infrastructure, all in an effort to “lay a new foundation for growth.”