With good epidemiology and good basic research, we've identified a cancer-causing agent, and it's called tobacco.

CNN: Debaters Agree Cancer War Should Stress Prevention

The Environmental Protection Agency has classified secondhand smoke as a known human cancer-causing agent.

CNN: Study: Smoke-free laws may cut heart attack hospitalizations

We are advocates for removing this cancer-causing agent from our population, and we've done a pretty good job, by the way.

CNN: Debaters Agree Cancer War Should Stress Prevention

If it were almost anything else, people would be out in the street just rioting, trying to get the government and public sector and private sector to get some other cancer-causing agent off the street.

CNN: Debaters Agree Cancer War Should Stress Prevention

There are others, but if we look at the one that is most pervasive and causes the largest number of disease in this country, lung cancer is rising and it's rising because we have not been able to get this cancer-causing agent off the street.

CNN: Debaters Agree Cancer War Should Stress Prevention