Massachusetts June 23, 2022 6:22 pm MBTA Board Meets to Address Safety Issues With problems mounting and federal officials calling for immediate change, the MBTA is discussing safety. US & World Videos 1:29 Sumner Tunnel in Boston to close for one month 2:17 Testimony underway 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 4:02 ‘To Catch a Contractor' series leading to changes