"He is, as is obvious, in very deep hiding. He's in the tribal areas in Pakistan that is very difficult. The terrain is probably the most difficult in the world. That's all we know, that he's located in that vicinity. The terrain is very difficult. He obviously has tremendous security around him,"Panetta said.
"I think it almost goes back to the early 2000s, that in terms of actually when he was moving from Afghanistan to Pakistan, that we had the last precise information about where he might be located. Since then, it's been very difficult to get any intelligence on his exact location," he said.
"The more we continue to disrupt al-Qaeda's operations, and we are engaged in the most aggressive operations in the history of the CIA in that part of the world, and the result is that we are disrupting their leadership", he added.
CIA director told that the CIA and NATO forces will continue their operation against Al-Qaeda and Taliban to flush out Bin Laden and Ayman-al-Zawahiri, who is described as 'lieutenant' to Bin Laden.