kate dumbaugh is a foster mother. she took in aidan when he was nine months old, and made sure that his contact with his birth motherer never broke off. kate explains how it is when drug-addicted parents suddenly take a sober view of their own lives. kakate: to keep that momentum going, day in and day out, when you're s sober for maybe the fit time in your life, and you're confronting all sorts of -- it always chokes me up. when you think about what they have to go through day-to-day, reporter: a court gave aidan's mother one year to get her life in order after she had overdosed on heroin. katherinine: since i hadad a background of drug use, and my other two children aren't in my custody because of my drug use, that's it. so, i wasnsn going to o lose another child into the system because i wanted to go and use drugs. reporter: katherine has made it. after eight months, she got her child back. but she fears her past might destroy her children's future. katherine: yeah, i'm very scared of that because it's more likely fo