"You likely know someone with a mental illness - one person in every five families in the U-S is afflicted with some type of mental illness. Mental disorders are the leading cause of disability in the U.S. for ages 15-44. And the number of children with mental illness is reported to be 2.7 million nationwide. On today's South Dakota Forum w?re exploring this topic that affects so many with the mother of a mentlaly ill child and with the director of a statewide organization that helps families and individuals deal with mental illness.