February 10, 2015 1:25 pm MBTA Head Unsure When Service Will Be Restored The head of the MBTA says no decision has been made about when rail service will be restored. US & World Videos 3:13 Weather forecast: Clear and sunny, with temps in the 70s 1:29 Sumner Tunnel in Boston to close for one month 2:17 Police testimony continues in Karen Read murder trial 2:03 Mass. school officials threaten to suspend student protesters 2:13 Karen Read trial Day 6: Witness testimony resumes