Attention Deficit Hyperactivity Disorder may be the most controversial health issue in the United States. Whether ADHD exists, and how to treat it, have become topics of heated debate among doctors, teachers and parents. 48 Hours follows two families struggling with this confusing, difficult condition. Can they help their children before they lose control completely? Grappling With ADHD: Part 1: Erin Moriarty follows two families who are trying to treat behavior problems in their children, using two very different approaches. Part 2: While one family experiments with a new medication, another tries to solve the problem without any drugs at all. The Controversy Over Adderall: Part 1: It's not just children who are struggling. 48 Hours reports on the case of Dawn Branson, a mother. After taking medication for ADHD, she says she had a psychotic reaction; she ended up crashing her car in an accident in which her son died. Part 2: Branson is suing the manufacturer of Adderall, Shire Pharmaceuticals, to improve the warning label. How does the company respond?