This article seems like a submarine from a wealthy lobby group trying to influence the re-authorization of No Child Left Behind. For starters the article shows a complete failure to understand educational funding, example:

>Both Ontario and Taiwan treat gifted children as eligible for “special education,” much like disabled students, giving them access to additional resources.

So does the US...Perhaps the misunderstanding is much broader than I give credit, but in the US everyone is entitled to a free and appropriate education, including ESE students. It seems people think ESE is just for disabled children, but it is also for gifted students. As a lawyer who advocated on behalf of ESE students, I saw everything from a disabled child being subsidized to the tune of hundreds of thousands of dollars, to a blind student being denied a ~$100 reading program (maybe one of the most rewarding moments of my legal career was getting the school to agree to purchase that program - but was a lawyer really necessary?), and advocating for a gifted ESE high school student who attended some classes at the local university via duel enrollment.

If US students' scores are lagging behind their international counter-parts it is not because gifted students in the US are not getting funding. There are more resources now than ever for gifted students, including: duel enrollments, online curriculum, and vouchers for private/charter schools.