21 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 2:09 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 2:20 Boston sets new rules for liquor licenses