coronavirus February 12, 2021 8:44 am Harvard Study on Testing Before Flights As the federal government considers mandating testing for domestic air travel, Harvard released a study that shows COVID testing is more effective than other health screenings like temperature checks. US & World Videos 3:01 Another warm and sunny day 1:26 Crews battle apartment building fire in Worcester 2:25 Jury shown photographs of John O'Keefe's clothes as testimony resumes Monday 3:13 Civil complaint alleges racial bullying at Melrose middle school 0:23 Revere police want information about abandoned dog