Former president is 'very grateful' to head home after broken neck bone
                                
                                
                                    (Newser) -
                                    Four days after he entered the hospital rather abruptly with a  broken neck bone suffered in a fall , former President George HW Bush—at an apparently sprightly 91 years of age—has left the hospital in Portland, Maine, reports  ABC News . "A very grateful President @GeorgeHWBush was discharged today,...