Darrell Issa actually said...

From this day forward, it is my hope that our committee will thoroughly investigate this matter in a truly bipartisan manner.

We exist to secure two fundamental principles. First, that Americans have a right to know that the money Washington takes from them is well ...

Americans deserve an efficient, effective government that works for them.

I think your point is extremely good, that nowhere in this report did we find specific incrimination of they knew.