Holder is trying to deny knowledge before a certain time. There's a reason for that.

He's supposed to issue daily briefings to the president. If he admits knowledge of the operation from way back in 2009, then chances are he would have briefed Obama. Which puts the big cheese on the spot. What Holder's trying to do is say that HE didn't know, therefore, the PRESIDENT couldn't have known.

Holder's not 1/10th as shrewd as Rice. He just bumbled big time. He should have laid everthing out instead of lying to congress. I expect Obama will force him to resign, to ward off impeachment proceedings. But he can still be cited for contempt of congress and tried for perjury. Then maybe he'll spill the beans.