The author was looking at the elements of crime in the us. She noticed an overlap between those involved in this increase in crime and women who were most likely to be experiencing higher rates of abortion. "There is an issue here, and it's sort of useful to figure out what the truth is," she says.
As the Supreme Court considers overturning Roe v. Wade, we look back at Steve Levitt’s controversial research on an unintended consequence of the 1973 ruling.