Here's the lesson of Depression I - We should have stuck to the Constitution's admonition about Congress having the power to coin money, and should have never allowed the creation of the "Federal Reserve". Oh, and someone should have executed FDR for high crimes against the Constitution.
Here's the first lesson of Depression II - Term limits are not optional, lawyers must be prevented from ever holding office for any term, and the Democrat party needs to be treated like the Nazis were during mop up operations after Berlin fell.
The unfortunate thing is that with the incoming coup, in 4 years there isn't going to be any country to instruct with these lessons.
The Federal reserve was created in 1913, under the Woodrow Wilson administration, not in the thities when FDR began his reign and the depression roared. http://en.wikipedia.org/wiki/Federal_Reserve