I’m not saying anything about the “best American students.” But America has unique social challenges—former slave society, mass immigration—that European countr

I’m not saying anything about the “best American students.” But America has unique social challenges—former slave society, mass immigration—that European countries and Singapore don’t have. Those impact test scores, but that doesn’t mean there’s problems can be fixed by schooling. P.S. “person of color” isn’t a category that exists.