Here is another great learning resource on human group and individual behavior.  Sorry, I know it is a long documentary.  This covers in great depth how fears and wants affect people.<p>[1] <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=eJ3RzGoQC4s" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=eJ3RzGoQC4s</a>