Marilyn C. Agin, M.D., is the medical director of the Early Intervention Program in New York City--the biggest program of its kind in the country. She has a master's degree in communication disorders and was a practicing speech pathologist. Dr. Agin is board certified in pediatrics and rehabilitation. She lives in New York City. Lisa F. Geng is the founder and president of Children's Apraxia Network and CHERAB, both of which are major nonprofit organizations dedicated to children with speech difficulties. She lives in Florida. Malcolm J. Nicholl is a former international journalist and...