Through the years, The Great and Powerful Walmart has banned countless CDs on the basis of album art and song lyrics they deem distasteful or obscene. These include releases by artists like Nirvana, Sheryl Crow, Prince, Marilyn Manson, The Goo Goo Dolls and Green Day. While profit-obsessed record company execs may take offense at Walmart's music policing, the artists themselves probably couldn't care less whether the world's largest, most dehumanizing, morally righteous retail chain carries their wares. But there was one band from the 1960s - the MC5 - that didn't take kindly to a local department store's refusal to stock their record. And they sought revenge.