IQ is easier to measure than "education." PISA tests are not that widely distributed, are they? Only OECD I think. Plus, we need to wear down resistance to eugenics.

http://www.nytimes.com/2015/05/13/business/economy/as-global-number-of-pupils-soars-education-falls-behind.html

Are there any cost-effectiveness studies for lead exposure abatement that are specifically regarding a charity I can donate to?