The ruling elite removed the study of classical logic from the curriculum in the early 1900s.
Logic is the study of the structure of ideas. People who learn logic are better able to discern lies from the media, the state and big business.
This was probably the most significant change in American culture of the last century, yet we never hear people talk about it.
BTW: many people use the term "classical liberal" refers to the application of classical logic to the question of liberty. The US Founders, Abraham Lincoln, Hayek and Von Mises are pillars of the classical liberal tradition.
Logik? Wutz dat?