TUCSON (KVOA) - Our 12th annual News 4 Tucson Lifesaver campaign is just getting started. To help keep your kids stay safe in and around the water, the News 4 Tucson team and local first responders are out teaching the ABC's of water safety in southern Arizona. The 'B' in our ABC's stands for barriers. Making sure they are in place is essential when it comes to keeping little ones out of harm's way. "Barriers are very effective," Tucson Fire Department Chief John Walka said. "It's another layer of protection that we can also provide when children aren't supposed to be swimming."