Public kinship‑linked cohort release

A private researcher digitized a decades‑old, taxpayer‑funded cohort (the NCPP), created sibling and twin kinship links, precomputed scores (g, growth, attrition weights), and published a searchable download site so anyone can run family‑comparison and heritability analyses. The work used an OCR/AI pipeline (Claude) plus substantial manual curation to convert microfiche archives into machine‑readable, analyzable data. — This lowers technical barriers to sensitive genetic and developmental research while simultaneously increasing risks of reidentification, misinterpretation, and politicized heritability claims.