Interesting that the article makes no reference to the Abortion argument put forward in Freakanomics (and defended in its sequel) which argued that making abort

Interesting that the article makes no reference to the Abortion argument put forward in Freakanomics (and defended in its sequel) which argued that making abortions more available in the mid-1970s led to fewer crimes from the 1990s on as those criminals weren't born (that's a bad summary of their detailed argument; don't attack my straw man). In many ways this is why economics is the dismal science, as are its offshoots in the social sciences. There's excellent data to support the lead claim. Excellent data to support the abortion claim. It could be either, both, or neither in varying degrees, since we're backloading outcomes rather than making predictions.