Boston April 14, 2022 6:13 pm Officials Outline Security Measures at Boston Marathon Law enforcement officials say there are no known security threats to the Boston Marathon, but add that they are prepared to keep people safe at the race. US & World Videos 1:23 Canton firefighter testifies in Karen Read murder trial 2:30 Protests continue at Tufts University 2:19 Here's how to stay up to date on the Karen Read trial 0:45 Karen Read trial Day 3: Witness testimony resumes 1:56 Campus unrest continues at Boston schools
