Ron Deval - boomer, ecologist, humanist, peacenik, political agnostic and unapologetically Canadian - has a surprise for fans of all causes liberal. Reliably left on most issues, Deval is nonetheless passionate about a tax revolution whose growing army is populated largely by conservatives and libertarians. Describing himself as an "advocate of things that favor humanity," Deval is, in short, a Fair Tax maniac. Encouragingly, the Land O' Lakes man is not just another guy with an opinion and a couple of Web sites. He can navigate a spread sheet. After about 20 years designing programs that helped wealthy clients of...