One interesting point that Ms. Shlaes points out is that much of the socialism of the New Deal is forgiven as necessary to prevent a socialist takeover of this country. But this ignores the reality that FDR's Brain Trust had spent time with the Communists in Russia and the Fascists in Italy before coming to power in this country. They were, in essence, fellow travelers with the socialists taking power then in Europe, whether they be Communists in Russia, Fascists in Italy, or Nazis in Germany.
What she doesn't address is the why for this failure to investigate one of the more momentous epochs in our history. My belief is that it is almost entirely a result of the extreme liberalism we now find in academia, and notably in the social sciences. This questioning of the demi-god FDR and his legacy would be political suicide in many universities right now, the height of political correctness, worse than challenging affirmative action, white male oppression, etc.