But I do know that it's true that if you wanted to reduce crime, you could -- if that were your sole purpose, you could abort every black baby in this country, and your crime rate would go down. (San Francisco Indymedia story)
On the face of it, Bill Bennett has a point... but it's wrong. Mass genocide based on skin color would severely tweak the population numbers, which in turn would tweak the crime rate. The crime rate would actually increase, since babies represent a very small percentage of the population that contributes to crime... with black babies representing an arguably very small percentage of that same population. As the population re-stabilized, the crime rate would probably go back to its old numbers but might go up or might go down. So, as a scientific statement, its about on par with "Intelligent Design".