Why do some people sneeze so violently?
James O'Brien's Mystery Hour
00:00
How Far Can Pollution Travel?
How far can pollution travel, asks Beverly Hilliard. Pollution in London would not be enough to give you pollution asthma. But it could go where air could go... Couldn't it really? I mean, I don't know. And how would you know, though - that's the other question.
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