MBTA September 27, 2023 6:14 pm Recently-opened Green Line Extension plagued by slow zones Trains were creeping along at a sluggish pace Wednesday after the MBTA put over a dozen slow zones in place on the Green Line Extension. US & World Videos 20:21 Karen Read trial: Cross-examination of Jennifer McCabe begins 1:33 Mass. man mauled by grizzly bear in Wyoming 2:10 Ipswich debates future of historic dam 2:38 Derrick White fans excited for Eastern Conference Finals 1:49 President Biden visits New Hampshire, Boston