Janet Yellen actually said...

The interest we pay on excess reserves will be the key tool that we use in order to raise the Federal funds rate.

It is important to the Fed to be able to put in place the supervision program that we regard as appropriate for a particular institution.

I think the United States was very fortunate that from the Great Depression until 2008 we never suffered a major financial crisis.

Absolutely not. And there was nothing, as far as I know, about 'full investigation.'