"It is a sordid business, this divvying us up by race" — Chief Justice John Roberts.

Sordid, always. And sometimes lethal, as some Native American children could attest, were they not, like Declan Stewart and Laurynn Whiteshield, dead. They were victims of the Indian Child Welfare Act (ICWA), which as construed and applied demonstrates how identity politics can leave a trail of broken bodies and broken hearts.

The 1978 act's advocates say it is not about race but about the rights of sovereign tribes, as though that distinction is meaningful. The act empowers tribes to abort adoption proceedings, or even take children from foster homes, solely because the children have even a minuscule quantum of American Indian blood. Although, remember, this act is supposedly not about race.