Associated Press news: Federal Reserve Chairman Ben Bernanke says a key lesson learned from the 2008 financial crisis is that central banks must have a dual goal of controlling inflation while supporting the banking system.
I must say he's full of bullshit.
Maintaining price stability, ie, controlling inflation, is the main goal of Federal Reserve. Controlling money supply and interest rates, including mortgage rates, is crucial to maintaining price stability.
Instead of admitting failure in controlling interest and mortgage rates which caused the financial meltdown in 2008, Bernanke was just trying to shift the focus and blame to something else.