February 19, 2016 6:15 am MBTA GM: Investments Need to Be Made Into System MBTA officials say repairs have been made to the signal at South Station in Boston and that all trains will arrive. US & World Videos 1:50 Boston student protesters face new warnings 2:30 Police shoot and kill armed man in Raynham, authorities say 2:02 Protesters at local campuses look on as dozens detained at Columbia 5:10 Mental health still suffers stigma in the medical and research fields 2:47 Students face disciplinary action for encampments