May 12, 2016 11:20 am Start-Up Launches Unmanned Submarine San Diego start-up company Ocean Aero has unveiled an unmanned submarine dubbed the “Submarrane.” NBC 7’s Liberty Zabala reports as the vessel debuts for the first time in local waters. 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
