Even though they adjust for inflation, this is very misleading, given the sheer size of the US economy. Real GDP (i.e. adjusted for inflation) is 10x what it was during WWII. You can use this calculator to check for yourself:

http://www.measuringworth.org/usgdp/

As a percentage of GDP (which is the only sensible measure), we're still way behind WWII. This is not to say that the current spending isn't alarming. But a really, really big economy needs a pretty big stimulus package.

Peter...what I'm getting from the calculator is:

real GDP 1944 $1806 (billions of 2000 dollars)
real GDP 2008 $11652

This is ratio of 6.5:1. How do you get the 10X number?

I used 1941, which in retrospect doesn't make much sense.

Here's some perspective on how Mr. Obama's $100 million cuts fit into the equation.