August 21, 2014 5:14 pm City Covers Underground Tunnels The city of San Diego did some work along Sunset Cliffs Thursday to patch some large holes in the ground. But as NBC 7’s Steven Luke reports, there is more to this story than meets the surface. 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