Here's the answer:
American adults in general do not understand what molecules are (other than that they are really small). Fewer than a third can identify DNA as a key to heredity. Only about 10 percent know what radiation is. One adult American in five thinks the Sun revolves around the Earth, an idea science had abandoned by the 17th century....
Dr. Miller, who was raised in Portsmouth, Ohio, when it was a dying steel town, attributes much of the nation's collective scientific ignorance to poor education, particularly in high schools. Many colleges require every student to take some science, but most Americans do not graduate from college. And science education in high school can be spotty, he said.
"Our best university graduates are world-class by any definition," he said. "But the second half of our high school population - it's an embarrassment. We have left behind a lot of people...."
Lately, people who advocate the teaching of evolution have been citing Dr. Miller's ideas on what factors are correlated with adherence to creationism and rejection of Darwinian theories. In general, he says, these fundamentalist views are most common among people who are not well educated and who "work in jobs that are evaporating fast with competition around the world."
But not everyone is happy when he says things like that. Every time he goes on the radio to talk about his findings, he said, "I get people sending me cards saying they will pray for me a lot."