One day ten years ago a heavy fog invaded Donora, Pa. (pop. 14,000), was soon reinforced by smoke and dust particles from the hustling community's furnaces and fires. For almost a week, residents breathed the polluted air. By the time fresh winds came to the rescue, half of them were ill, 20 had died. "It could happen again," was the point that a handful of experts recently made clear on Pittsburgh's KDKA-TV.
Produced at the request of Surgeon General Leroy E. Burney, the half-hour program (Public Enemy) used facts and figures collected in 200 localities to show that air pollution may hasten...
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