22 hours ago Green Line service resumes after derailment Authorities are investigating the cause of this week’s derailment on the MBTA’s Green Line. US & World Videos 2:32 State auditor is walking all of Mass. to bring attention to her ballot question 2:09 Salem sets noise limit during Halloween season, spooking tour guides 2:34 Tour guides unhappy over Salem noise ordinances 2:32 Video shows man fire at police on I-190 in Worcester 3:22 Check out the high-tech costume of the Salem Halloween parade's grand marshal