Fathali Moghaddam, Professor of Psychology at Georgetown University, examines the behaviors that unite -- and divide -- friends and couples.

Do you believe that you are essentially the same or different from people in other racial and ethnic groups? According to Fathali Moghaddam, Professor of Psychology at Georgetown University, your answer to that question will have a profound effect on your life.

Fathali Moghaddam, Professor of Psychology at Georgetown University, sees the rise of women leaders as the key to building peaceful societies.

Fathali Moghaddam, Professor of Psychology at Georgetown University, believes there are dictatorial personalities all around us, driven by a fierce desire to seize power.