CBS completed its two-parter on the dangers of Foul Air. Yesterday John Blackstone told us about the asthma epidemic in California's polluted San Joaquin Valley. Part two saw Wyatt Andrews investigate lung damage caused by invisible microscopic soot from power plants and diesel emissions. The Environmental Protection Agency ignored the demands of the American Lung Association and permits soot to persist. The ALA claims soot kills "tens of thousands each year" nationwide; the EPA responds that the death are not proven.
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