At first, the story line went like this: Sen. Hillary Clinton may have committed the ultimate political culinary sin -- not tipping the waitress. But the story was wrong: NPR has retracted its initial report, a nasty little anecdote about iClnton meeting a working-mom waitress at the Maid-Rite eatery in Iowa over the summer, using her story in a speech -- and then stiffing her on the tip. Now NPR has confirmed the tip with an editor's note: "Since this story aired, Hillary Clinton's campaign contacted NPR to say that the campaign paid Maid-Rite a bill for $100 for food...