A brilliant summary explaining the evolution of the banking system. Starting from the early 20th century it has evolved into the current predicament through a series of important phases. I doubt there is a better discussion that provides so much knowledge and understanding so concisely on this topic. Chris Martenson interviews Nomi Prins.
http://www.zerohedge.com/news/2015-02-01/nomi-prins-sinister-evolution-our-modern-banking-system