mbta February 22, 2017 8:20 pm What's Behind the MBTA's Signal Problems? Signal issues appear to be a recurring problem for the MBTA. NBC Boston’s Natasha Verma took a closer look at the MBTA’s signal shop and discovered the issues could have to do with old equipment. US & World Videos 8:39 Gina Rodriguez gushes 0ver motherhood with son Charlie 2:22 Scarlett Johansson and Colin Jost have date night at White House Correspondents' dinner 2:09 President of MIT calls for shutting down pro-Palestinian encampments 3:57 Pleasant Sunday despite morning showers 1:00 Three dead in apparent murder-suicide in Lowell
