Propaganda, pure and simple. Don't believe all you read.
This book reports that the White House distributed a workbook to schools asking children "to draw the world's largest penis, compare white and black penises, and show their parents making love." Gary Wills, a respected journalist, says that Dobson has never been able to substantiate this claim. I guess that William Bennett, who has written the book's introduction, doesn't mind if these kinds of lies are published, but I do.