We don't completely understand why they develop lung cancer.

Lung cancer is treatable if it's caught early. The best treatment for lung cancer is surgery. If it is not caught early, as it is, unfortunately, in two-thirds of patients, we have made some progress in terms of the use of chemotherapy ... and radiation.

There are some exciting new molecular-targeted drugs that are helpful, and we're understanding the molecular biology of lung cancer much better today in helping to design more rational treatments. But unfortunately, the vast majority of people with lung cancer today will die from their disease.

We still don't understand it to the degree we do any other cancer.

Rates of colorectal cancer screening should be as good as or better than mammography rates if the nation really wants to gain the greatest level of benefit from both a prevention and early detection standpoint.

We desperately need ways of detecting early lung cancers.