MBTA October 14, 2019 7:30 am Inside Look at MBTA's Green Line Extension MBTA officials speak to Jeff Saperstone in an exclusive interview to discuss the ongoing Green Line extension project. US & World Videos 3:05 100 protesters detained at Northeastern University 2:39 Community mourns police sergeant killed on duty 2:50 Community mourns Billerica police sergeant killed on duty 4:32 Anti-war protester at Northeastern speaks amid arrests: ‘We are peaceful students' 10:42 Multiple people arrested as police clear campus encampments