Reviews the furor and reaction to Arthur Jensen's controversial genetic theory of intellectual differences. The cases of Shockley, Eysenck, and Herrnstein are also discussed as instances in which intellectual debate was supplanted by academic persecution and impassioned rhetoric. (EH)

Finds that the available data for the heretability of intelligence is inadequate to settle the question conclusively. Argues that the benefits of diversity can only be realized if equality of opportunity is complimented by equality of status. (EH)

The author reexamines the controversy surrounding his genetic hypothesis in an attempt to clarify his contention that differences in IQ scores between blacks and whites may be attributable as much to heredity as environment. (EH)