The war in Iraq has been very, very expensive - partly because the Administration tried to keep the apparent costs down. But the benefits have been elusive at best - partly because the ostensible reasons for going war were unconnected with reality - no weapons of mass destruction, no connections with 9/11.

We could, of course, always make the payments, simply by printing more money - we simply promise to pay people by giving them dollar bills - but that could set off inflation.

The top 1 percent have the best houses, the best educations, the best doctors, and the best lifestyles, but there is one thing that money doesn't seem to have bought: an understanding that their fate is bound up with how the other 99 percent live. Throughout history, this is something that the top 1 percent eventually do learn. Too late.

When you think of policies that are going to address inequality of wealth, you have to be very thoughtful about what economists call "incidence of taxes." If most of the savings is being done by capitalists, and you tax the return on capital, then they will have less to invest. That would mean, over the long run, that the rate of interest would go up. That would therefore undo some of the intent to lower the income of capitalists.

Certainly, the poverty, the discrimination, the episodic unemployment could not but strike an inquiring youngster: why did these exist, and what could we do about them.

These debt obligations will simply erode America's standard of living in the future. Money spent to service the debt is money that we don't have to spend on consumption's goods, or on investment in our future.

For the United States, our political system is clearly distorted. We have gerrymandering so that there is a situation where a million more voters who vote for Democrats, yet the House is controlled by the Republicans. So clearly, the way our Congress operates is important. The other big issue is the influence of money in politics. It's not only campaign contributions. People like Trump - either you become very dependent on your benefactors or you are very rich.