16 rusty cannonballs were discovered near Charleston after hurricane
                                
                                
                                    (Newser) -
                                    Local media  alerted  residents in and around Charleston, SC, on Sunday that they were probably going to hear something "like an explosion. That heads-up was because 16 rusty cannonballs were unearthed by Hurricane Matthew on Folly Beach, the city's  Facebook page  announced, and per  USA Today , they appeared...