Studies Prove . . . / Real Clear Politics, 12 Aug 2006

http://www.realclearpolitics.com/articles/2006/08/studies_prove.html
Thomas Sowell
My late mentor, Nobel Prize-winning economist George Stigler, used to say that it could be very instructive to spend a few hours in a library checking up on studies that had been cited. When I began doing that, I found it not only instructive but disillusioning. [Gov & Pol; Inf & KM]

Part II - http://www.realclearpolitics.com/articles/2006/08/studies_prove_part_ii.html

Part III - http://www.realclearpolitics.com/articles/2006/08/studies_prove_part_iii.html