Climber apparently suffered heart attack soon after reaching the summit
                                
                                
                                    (Newser) -
                                    A 52-year-old climber died on Mt. McKinley yesterday, soon after reaching the 20,320-foot summit, reports  Reuters . After a 20-hour climb, Brian Young returned to the high camp, 3,000 feet below the summit, when he apparently suffered a heart attack and stopped breathing. Attempts to revive Young failed. His...