The Fed grows worried its loose policy threatens US financial stability ! Really....your just now growing concerned. Fed concerned stock valuations too high......again your just now catching on? Why do things have to get to extreme's for this group to wake up. It seems if interest rates rising has no deterrent effect on equity- housing etc. then continue to raise so when the bubble does pop there will be some actions that can be taken then. All the criteria the Fed was looking at to decide if they should raise rates was hit a long time ago.