The trouble with girls

A typical pre-teen girl today obsesses with her appearance and forms close attachments to friends, according to psychologist Leonard Sax. He says the shrinking window of childhood hurts girls in the long run, because it prevents them from creating their own identities.

Guests

• Leonard Sax, MD: Author of the new book, "Girls on the Edge: The Four Factors Driving the New Crisis for Girls." He's a psychologist and physician. Dr. Sax also is the founder and executive director of the National Association for Single Sex Public Education.

Resources

• National Association of Single Sex Education, Leonard Sax