Kevin Drum continues his coverage on the environmental lead leads to crime beat:
As predicted by the lead-crime theory, the prison population of younger cohorts (15-25) has dropped the most. The 26-30 cohort is flat, and the older cohorts are making up a bigger proportion of the total prison population. Why? Because everyone under 30 grew up in a fairly lead-free environment, so they’re less likely to commit serious crimes than similar cohorts in the past. 35-year-olds grew up at the tail end of the lead era, and are still moderately crime prone. Older cohorts were heavily lead poisoned as kids, and they’ve remained more crime prone even as they’ve grown older.
Truth be told, it’s easier to clean up the lead than to change how we parent our families, so this is a seductive theory. Doesn’t mean it’s wrong or right, though.
