This is a really good synopsis of Ferguson's destroying Krugman's economic theories:
Much Bigger Than The Shutdown: Niall Ferguson's Public Flogging Of Paul Krugman - Forbes: "While America was distracted by the theatrics of the government shutdown and threat of default something of much greater importance occurred. Niall Ferguson undertook a public flogging of Paul Krugman.
Krugman’s horns now forever will show under his dislodged faux halo. For this the world will prove a safer, and much more decent, place."