"Krauthammer: "I'm The Only Entity On Earth, Other Than Rogue States, That Has Received An Apology From The White House"", www.realclearpolitics.com. August 1, 2012.
"'The Economy Fell off the Cliff'". Interview with Mathias Müller von Blumencron, Gregor Peter Schmitz and Gabor Steingart, www.spiegel.de. November 24, 2008.