If you run out of toilet tissue, rapper P.O.S. suggests you “find the Sunday paper; wipe your ass with the President.” The refrain in “Music for Shoplifting,” from his March 2005 debut, Ipecac Neat, makes Kanye West’s Katrina-incited outburst seem quaint. But if you think that’s political, P.O.S.’ bad brain has increased its concentration for […]