traffic November 21, 2019 5:40 am Black Ice Causing Multiple Crashes Early in Boston Multiple crashes have been reported in Boston and the greater area due to black ice. US & World Videos 2:14 MIT suspends student protesters 3:13 Weather forecast: Clear and sunny, with temps in the 70s 1:29 Sumner Tunnel in Boston to close for one month 2:17 Police testimony continues in Karen Read murder trial 2:03 Mass. school officials threaten to suspend student protesters