On Tuesday, Charles Murray, from the American Enterprise Institute, wrote an article in the Wall Street Journal, Acid Test, showing his fiery disapproval of No Child Left Behind.  This quickly brought other responses. Michael Pettrilli, from the Fordham Foundation, responded yesterday, with  Dropping Acid.  Jay Greene and Marcus Winters, with Manhattan Institute, published their disagreement with Murray today in National Review.  No matter where you stand on this issue, the focus is on achievement, and that is positive!