It is unlikely that others would even demand their money back overnight, for doing so would lead to the value of the dollar plummeting; what they would get back with be worth little. But what we are already seeing is an erosion of confidence of the dollar, which is seeing the dollar fall in value.

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.

American inequality didn't just happen. It was created.

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.

In the U.S., you couldn't have job creation with interest rates of 30 or 40 percent. They had a philosophy that said job creation was automatic. I wish it were true. Just a short while after hearing, from the same preachers, sermons about how globalization and opening up capital markets would bring them unprecedented growth, workers were asked to listen to sermons about "bearing pain." Wages began falling 20 to 30 percent, and unemployment went up by a factor of two, three, four, or ten.

The proposal for a new global reserve currency - or Special Drawing Rights - is a good idea for many reasons. Yes, for the Chinese it would cushion any fall in the value of the dollar per se because it would only be part of a basket of other currencies, including the yen and the euro.

Health care is very different from other sectors of the economy in several respects, one of which is the fact that the risk can be very high beyond people's ability. That leads to insurance.