Wasn't a federal agency; instead a subdivision that has 2% of the US population. So, it's possible in a hundred years, most such bureaucracies won't see a singl

Wasn't a federal agency; instead a subdivision that has 2% of the US population. So, it's possible in a hundred years, most such bureaucracies won't see a single such case. Caseworkers don't Google extreme scenarios regarding obscure words ("chimerism") that they've probably never heard of before. Apparently, neither the mother nor her own obstetrician nor her lawyer came up with this theory, either, for quite a while, so who's fault is that? (The people with the most at stake couldn't find the magic research promptly, either.) It wasn't until after the 2002 paper about the Keegan case, and then other media coverage of this Fairchild case, and then followup stories/dramas and more recent research, that people outside of research had any idea anything like this could happen. No, low-level state caseworkers are not going to come up with the idea themselves. And the fact they kept running tests, including monitoring a live-birth-and-immediate-DNA-test, and deferring final judgement, indicates that the system was entertaining the possibility that this was an edge case. There's some serious hindsight bias in the know-it-all criticisms here.