These two tragedies took a tremendous toll on human life, and unfortunately, there are other problematic lapses in recent company history that also worry me.

What is appalling about it, among other things, is that we really don't have much to show for it.

Do you think that it would be possible to create a legislative instrument to help manage our deficit to a percentage of GDP?

I think that increasing affordable access to college, especially for low-income students, is one of the most critical investments we can make in our future, and we need to do it.

I believe the abiding concern of everybody on this committee and every committee of this Congress ought to be that we are at risk of being the first generation of Americans to leave less opportunity, not more, to our kids and our grandkids.

I think going forward both for K-12 and higher ed, online is going to be a very important part of the delivery system, a hugely important part.

I have spent much more time in K-12 education than I have higher ed, and came to believe that the alignment of our incentives and disincentives in public education are largely out of whack in terms of the outcomes that we really want for…

The only thing I care about is that the deals that are made are kept, and that the quality of the education be high, whether it's public or whether it's private.

I wish I could, but I think, as Dr. Miller pointed out, when you look at the world's literature, you have, maybe, less than 40 articles that you could possibly turn to.

Much of the data we have regarding health risks of oil spills likely understates the risks for a large spill.

Let me just--may I ask one more question, Mr. Chairman? Thank you.