Can we attribute the falling crime rates to the legalization of abortion?

Data associated with the fall of crime in the 90s, which was predicted as being the decade where crime would explode, has as Stephen Levitt has argued been attributed to the ability to prevent unwanted pregnancies – much of that ability associated with the ability to receive an abortion.

The fact is that nearly 50% of the fall of crime has been associated with factors attributed to the ability to receive an abortion. This isn’t causal, and can be more dangerously suggestive than anything else, but it is something to think about.

How do people react to this information?