Because the private sector worked so well in the late 20's?I wonder has much more efficiently and less costly they would have been run by the private sector?
The private sector has always worked vastly better than Government. And maybe this eludes you...but the Government creates nothing. The money for the TVA and WPA came out of the private sector.
BTW, the national debt is currently heading for $18 trillion. They just voted to raise it above $17 trillion a month ago and it is now over $17,800,000,000,000.00.
Who's spending all of that money?