Family Therapist Salvador Minuchin.

Evan Imber-Black is a family therapist who has written the new book "The Secret Life of Families: Truth Telling, privacy and reconciliation in a tell all society." (Bantam) She makes the distinction about what is a private matter and what is a secret. She is the director of program development at the Ackerman Institute for the Family in New York City and a professor of psychiatry at the Albert Einstein College of Medicine.

Donald Drake is a reporter for the Philadelphia Inquirer whose work often focuses on medical issues. Last week the Inquirer published his seven-part series on the homeless and the mentally ill, "The Forsaken." Drake spent over a year researching the topic, and has also written a musical drama, "Crazy People," based on his research. [The series would later be short-listed for the Pulitzer Prize.] Drake joins the show to discuss street people and the deinstitutionalization of the mentally ill. Drake will also answer listener calls.

New research shows that teenagers' brains aren't fully insulated, so the signals travel slowly when they need to make decisions. Neuroscientists Frances Jensen, who wrote The Teenage Brain, explains.