One Supreme Court case stands behind the Fair Labor Standards Act, the Controlled Substances Act, the Endangered Species Act and the Civil Rights Act. It's been cited in rulings involving hot-button issues such as health care reform and medical marijuana. But chances are you've never heard of it. Despite its wide-reaching influence, hardly anyone outside of legal circles is aware of the 1942 case, Wickard v. Filburn. One man, Gary Marbut of Missoula, Mont., hopes to change that. If Marbut succeeds, we'll also hear about another Supreme Court case: the one that overturns Wickard. ... snip ... The case was...