So the joke begins like this: An economist, a lawyer and a professor of marketing walk into a room. What’s the punch line? They were three of the five “expert witnesses” Republicans called for last week’s Congressional hearing on climate science.
But the joke actually ended up being on the Republicans, when one of the two actual scientists they invited to testify went off script.
http://www.nytimes.com/2011/04/04/opinion/04krugman.html?_r=2&ref=columnists
