“The 21st Century”: Autos and All That Traffic (1969)

Steam-powered cars? Steering wheels that monitor your heart rate? Some automotive innovations predicted 50 years ago haven’t come to fruition (yet), but among those explored by host Walter Cronkite that did, in one manner or another, are air bags, crash test dummies, electric cars, anti-lock brakes, computer aids for drivers, and dashboard navigation. Originally broadcast on April 20, 1969.