A cultural history of the last forty years, The Age of American Unreason focuses on the convergence of social forces--usually treated as separate entities--that has created a perfect storm of anti-rationalism. These include the upsurge of religious fundamentalism, with more political power today than ever before; the failure of public education to create an informed citizenry; and the triumph of video over print culture. Sparing neither the right nor the left, Jacoby asserts that Americans today have embraced a universe of "junk thought" that makes almost no effort to separate fact from opinion.