The president’s question was this: “Why are we having all these people from shithole countries come here?” Technically — in its own crass way —
It was a critical piece of evidence: an inmate’s shirt, bloodied from a jailhouse brawl. When it went missing, Deputy Jose Ovalle had an idea.
Widespread DNA testing has shed light on the ancestry of millions of Americans. But these services have limitations, and the results can be uncertain. NYT