January 27, 2015 5:05 pm Social Media Threats Difficult to Trace Whether it’s schools or planes, the FBI is seeing an increasing number of social media threats. NBC 7’s Greg Bledsoe reports on why they’re so difficult to trace. US & World Videos 0:28 A Vermont state trooper plunges into icy pond to rescue 8-year-old girl 2:59 Keep these travel etiquette tips in mind this holiday season 2:20 Bodies of Missing Men Found in Rubber Bins Inside Storage Unit 1:42 Hundreds of Golden Retrievers Walk a Mile for the Official Boston Marathon Dog 1:51 Typewriter Shop Owner Receives Gift From Tom Hanks
