A TED TALK BY:
Philip Zimbardo, psychologist from Stanford, author of
"THE LUCIFER EFFECT: Understanding how good People turn Evil"

he pioneered the late 1960's STANFORD PRISON EXPERIMENT, a groundbreaking experiment on humans that broke way for the ceasing of using humans as psychological test subjects.

http://www.ted.com/talks/lang/en/phi...y_of_evil.html
it is 23 min long.


the book is also worth a read, but warning, it can be triggering