Massachusetts July 2, 2021 11:29 pm Gas Main Break Leads to Evacuations in Chelsea National Grid has responded and is investigating. The cause is unclear. US & World Videos 39:37 Defense's opening statement in the Karen Read trial | FULL VIDEO 2:07 Campus tensions continue to escalate in Boston 3:30 Opening statements underway in the Karen Read trial 2:04 Newton dentist office aiming to keep kids comfortable 2:08 Tension grows over campus protests in Boston