"It's difficult to believe that Al Gore was oblivious to the existing laws. He has to respond at some point"

This quote indicates that Barbara Olson thinks that Al Gore ought to have been aware of the existing regulations and also ought to have reacted to them. She is implying that Al Gore need to have acted as well as not ignored the regulations. This could be taken an objection of Al Gore for not doing something about it and also not reacting to the legislations. Olson is suggesting that Al Gore should have been more knowledgeable about the legislations and must have done something about it to address them. She is suggesting that Al Gore ought to have taken responsibility as well as replied to the laws. This quote might be taken a call for Al Gore to take obligation and also react to the regulations. Olson is suggesting that Al Gore must have been a lot more aware of the regulations as well as need to have acted to address them.