Mike Johanns actually said...

I just caution you to tread very, very carefully into this area because there is nothing that is more controversial, more hotly debated.

I voted against Dodd-Frank. I don't share the enthusiasm that the chair does.

Thank you, Mr. Chair. And let me just say how much I appreciate you calling this hearing today.

So the methodology would be what is put into a secure environment called 'detail records.' These are to/from records and at a selected time.