Greg and Kristy have seen dozens of caseworkers leave DCS and go into private care when the stress of the job and inefficiencies of the system get to be too much. Greg and Kristy agree the opioid epidemic has made things harder, but when they look at their girls, like this 2-year-old pictured playing with the light Greg uses at work, it never occurs to them to give up. Despite leaving the house at 3 a.m. six days a week to work in a quarry near Louisville, Kentucky, Greg says there's no room for him to be tired when he gets home. "You can't think about yourself," he said. "You just have to keep going because these kids need you.” Sara Miller