JAYNE LYN STAHL:  Is psychosis contagious? Oddly, when thinking of the concept of psychosis and pathologies of the psyche, we think of the individual not the collective or communal ethos.

But what happens when an entire nation, culture, or civilization develops the kind of pathology, and weapons of mass delusion that enables it to contaminate the entire planet and pose a clear and present danger to the survival of the human race?