It seems we will never know. SCIENCE magazine [Sept. 28, 2007] reports that in 1995 "the United States lagged behind most of the world on a test of advanced mathematics and physics taken by graduating high school students from 16 countries." Our low score made us look pretty uneducated.
The Bush administration is taking steps to make sure this doesn't happen again. The US will not take part in the next international test to be given in 2008. It's nobody's business how backward we are so now they won't know. What's really good is that we won't know either so we won't have to do anything about it.
No Child Left Behind because they are all behind. That's equality.