http://www.ted.com/talks/philip_zimbardo_on_the_psychology_of_evil?language=en
This Ted Talk describes WHY seemingly normal people cross over to the dark side of immoral behavior.*caution GRAPHIC images
My Second TED Talk is by individual reading author, Elyn Saks and her battle through college, law school and daily life with schizophrenia.
http://www.ted.com/talks/elyn_saks_seeing_mental_illness
