pdq, you may be right about FDR allotting nearly 44% of the GDP at the height of WWII. Seems awfully high to me; on the other hand, I don't know so I accept it.

One difference, however, is that the measures that Roosevelt took were meant to pay for the war. Today, the costs of the war(s) we are fighting are being deferred to a future generation. The bills will come due.