You can read Steve Levitt's op-ed on pools and guns here. It is quite clear from the op-ed why he wrote it: he lost his son and he didn't want another parent to lose a child to a preventable accident. I am totally disgusted with Lott for accusing Levitt of exploiting the death of his child to cover his "rabidly anti-gun" views. I'm too angry to write any more.
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Just so people don't have to take my word for the nature of Lott's attack on Levitt, here are Lott's exact words. On page 54:
Brad Delong points us to a New York Times profile on "rabidly anti
Norman Levitt was a great man, a leonine defender of science against the trendy pablum advanced under the guise of post-modern critique.
The Chicago Tribune reports: