Wall Street is perhaps the most powerful economic and political force in this country. You have companies like Goldman Sachs, who just recently paid a settlement fine with the federal government for $5 billion for defrauding investors.

As a result of the digital age and the decline of first-class mail, there is no question that the Postal Service must change and develop a new business model.

It would, I think, be hard for anyone to make the case that the United States is a just society or anything close to a just society. In America today, there is massive injustice in terms of income and wealth inequality. Injustice is rampant.

The Federal Reserve has a responsibility to ensure the safety and soundness of financial institutions and to contain systemic risks in financial markets.

I think everybody is in agreement that America is a great entrepreneurial nation. We have got to encourage that. Of course, we have to support small and medium-sized businesses. But you can have all of the growth that you want and it doesn't mean anything if all of the new income and wealth is going to the top 1 percent.

Wish we could, and allow the Taliban or anybody else to reclaim that country. But what we must do is some progress in Iraq, where finally the Iraqi army, which has not been a particularly effective fighting force, retook Ramadi.

Education should be a right, not a privilege. We need a revolution in the way that the United States funds higher education.