In the following video, Motley Fool financial analysts Matt Koppenheffer and David Hanson discuss Ben Bernanke speaking with Congress today, and the coming end of the Fed's quantitative easing policy. As quantitative easing comes to an end and interest rates rise, banking stocks could take a hit as their net interest margin compresses even further. Should investors be preparing for this? David and Matt discuss what the effects of this could be on banks, and how investors should react.