Boston December 13, 2023 7:12 am FBI warns of increased risk of violence this holiday season The FBI and Homeland Security warmed on Tuesday of an increased threat for violence in large crowds and religious gatherings. US & World Videos 1:55 Karen Read trial Day 12: Julie Nagel to testify again 2:07 Bruins force Game 6 with win over Panthers in Florida 1:56 Car hits and injures young child in Norwood 20:20 Karen Read trial: Witness describes seeing ‘blob' in the snow 3:30 Arrest warrant issued for worker charged with extortion in $3 million lottery case