Politics is not really politics any more. It is run, for the most part, by Madison Avenue advertising firms, who sell politicians to the public the way they sell bars of soap or cans of beer.

On one hand, I'm an optimistic pessimist. On the other, I'm a pessimistic optimist. But while there's life, there's still hope, and I wouldn't be doing what I'm doing if I didn't think there was still hope.

If you inhale a millionth of a gram of plutonium, the surrounding cells receive a very, very high dose. Most die within that area, because it's an alpha emitter. The cells on the periphery remain viable. They mutate, and the regulatory genes are damaged. Years later, that person develops cancer. Now, that's true for radioactive iodine, that goes to the thyroid; cesium-137, that goes to the brain and muscles; strontium-90 goes to bone, causing bone cancer and leukemia.

as a physician I examine the dying planet as I do a dying patient. The earth has a natural system of interacting homeostatic mechanisms similar to the human body's. If one system is diseased, like the ozone layer, then other systems develop abnormalities in function - the crops will die, the plankton will be damaged, and the eyes of all creatures on the planet will become diseased and vision impaired.

Terrorists do not actually need nuclear weapons. They have been conveniently supplied with 103 nuclear power plants scattered throughout the United States (438 of these deadly facilities exist throughout the world). A planned meltdown at one of these facilities would make the World Trade Center attacks seem like child's play. The massive concrete containers protecting the reactors are not strong enough to withstand the impact of a jumbo jet.

The massive quantities of radiation that would be released in a war fought with nuclear weapons might, over time, cause such great changes in the human gene pool that following generations might not be recognizable as human beings.

Capitalism is destroying the earth.