McRib is returning to most locations, for a while
                                
                                
                                    (Newser) -
                                    The on-again, off-again McRib is back on again. McDonald's  announced  Thursday that its fan-favorite boneless pork sandwich, last sold a year ago, will be available for a limited time at 9,000 of 14,000 restaurants nationwide. The 480-calorie McRib first launched in 1981, with  The Takeout  snarking that...