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Scientific American

February 1, 1991

1 min read

Postal Mortem

Drug test results may point to racial discrimination

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John Horgan, who has written for Scientific American since 1986, comments on science on his free online journal Cross-Check. He has also posted his books Mind-Body Problems and My Quantum Experiment online. Horgan teaches at Stevens Institute of Technology.

More by John Horgan

This article was originally published with the title “Postal Mortem” in Scientific American Magazine Vol. 264 No. 2 (February 1991), p. 22
doi:10.1038/scientificamerican0291-22

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