the rise and fall of logic

I am of the opinion that Kohn's reasoning in "The Dangerous Myth of Grade Inflation is sound. He starts off with facts and quotes that counter the existence of grade inflation by showing that grades have actually been decreasing over the years. He then gives strong and logical alternative reasons for why the grades are raising other than through inflation. He almost calls bull on the idea that rising grades is a bad thing. If, like he believes, it's due to something other that purposeful inflation, schools and the community should be celebrating.
Kohn uses official documents and quotes from various professionals to support his claims. He organizes his thoughts and evidence well, making it a clean read, and a clean sweep for his argument.