MBTA July 12, 2018 6:18 am Broken Rail Prompts Partial Closure of MBTA Green Line Travelers can expect a delay in their commute through Friday as the MBTA works to fix a broke rail along its Green Line track. US & World Videos 2:40 Cambridge bans right turns on red lights 2:23 Friend of John O'Keefe testifies in Karen Read trial 1:20 Police activity in Bridgewater connected to investigation 1:41 Karen Read trial Day 7: Canton police officers continue to testify 1:57 Tensions escalate as protests across Mass. colleges continue