This article from NPR tells the story. Former Assistant Secretary of Education Diane Ravitch changed her mind about the law, saying exactly what teachers have been saying since the passage of the law: "The basic strategy is measuring and punishing."
Give me accountability. Test them when they come in and test them when they leave. If they don't gain a year's worth of growth, I'll tell you exactly why. If you have data that proves me wrong, fire me. That's accountability I can believe in. But don't come in and think that a kid who can't reliably multiply 8 X 7 in his or her head when entering 8th grade is going to magically be able to graph and manipulate quadratic equations just because you threaten to close my school, transport all the students elsewhere and fire the whole staff. And that's what I've been hearing since 2002. Yes, I'm mad. It's about time someone with a platform was heard on this matter.