It's interesting that not one sentence in the article is from scientists or epidemiologists who published or reviewed the study itself. The scientific evidence that the ban was based on is shockingly weak - a 20 patient, retrospective, observational study of MRI scans that weren't even substantiated by clinical findings in those very same patients in the same study.

The quoted study design has well understood flaws from selection, observation, and publication biases. And until the findings are independently replicated, this can't really be called "science" but rather a "single scientific publication" http://www.pnas.org/content/109/20/7871.abstract.

The economic effects of banning organophosphates based on a single observational study would be undoubtedly horrendous to the third world. The NYT article adds little careful review and seems to simply draw on the "chemicals are ruining the earth" narrative. Taken to its logical conclusion, although popular and on its surface appealing, basing policy simply on a "fear of chemicals" has potential catastrophic implications that would disproportionately harm those in poverty: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2984095/