September 14, 2017 12:30 pm Augmented Reality Helmet Helps Navy With Training Exercise An augmented reality helmet helps the Navy create immersive, realistic training exercises to test its military power at Naval Base San Diego. NBC 7’s Liberty Zabala reports. 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