Henry Foster Jr., M.D. is Senior Advisor to President Clinton on Teen Pregnancy Reduction and Youth Issues. He founded the I Have a Future program to encourage at-risk youth to stay in school, and to build self-esteem. Foster was nominated by Clinton to be U.S. Surgeon General but his nomination was withdrawn because of controversy over Foster's record on abortion. He has a new book, "Make a Difference." (Scribner)