Union refusing to unload dangerous cargo destined for tense Zimbabwe
                                
                                
                                    (Newser) -
                                    As tensions rise in Zimbabwe, a Chinese ship has arrived in a South African port with arms bound for Harare. The ship put to sea with AK-47 rifles, mortars, rocket-propelled grenades and millions of rounds of ammunition, apparently to fortify President Robert Mugabe, who's not relinquishing power despite his suspected...