May 16, 2016 5:40 pm NECN INVESTIGATES: River of Neglect, Part 1 It’s what you could call a “river of neglect” – a murky mess flowing into the Assabet River in Concord, Massachusetts. US & World Videos 24:50 @Issue: Biden signs the foreign aid bill, and a retrospective of Boston's 2024 Olympics bid 3:05 100 protesters detained at Northeastern University 2:39 Community mourns police sergeant killed on duty 4:32 Anti-war protester at Northeastern speaks amid arrests: ‘We are peaceful students' 5:39 Billerica police sergeant hit and killed by excavator during construction detail