contributing members of our community. it's not draining at all. it's very, very energizing. >> nick valencia, cnn, clarkston, georgia. >> thank you so much and our thanks to the family for letting us in their home. coming up, the unintended consequences of president trump's border wall. smugglers building tunnels from mexico to the united states. our ed lavendera takes us inside of them. >> the imagination of people trying to illicitly come north is something i don't try to second-guess, it is -- incredible some of the methods they use.