Our interconnectedness on the planet is the dominating truth of the 21st century. One stark result is that the world's poor live, and especially die, with the awareness that the United States is doing little to mobilise the weapons of mass salvation that could offer them survival, dignity and eventually the escape from poverty.

We need to defend the interests of those whom we've never met and never will.

Every morning our newspapers could read, 'More than 20,000 people perished yesterday of extreme poverty.' How? The poor die in hospital wards that lack drugs, in villages that lack antimalarial bed nets, in houses that lack safe drinking water. They die namelessly, without public comment. Sadly, sad stories rarely get written.

Business often does a good job supporting communities: the arts, universities, and scientific enterprises... But that philosophy has rarely reached poor countries. Even businesses that are enlightened in their home bases see Africa, Latin America, and parts of Asia as places to exploit natural resources or use cheap labor.

Globalization was a deep trend pushed by technology and right ideas, as much as anything else.

The rich do not have to invest enough in the poorest countries to make them rich; they need to invest enough so that these countries can get their foot on the economic ladder . . . Economic development works. It can be successful. It tends to build on itself. But it must get started.

The defining challenge of the 21st century will be to face the reality that humanity shares a common fate on a crowded planet.