Eli's post below refers.
I'll just add one response to this statement by Tom: "if you consider yourself a skeptic of climate change science, think the risks have been overblown, and oppose intervention in the economy to mitigate climate change, you probably find the comparison outrageous, and maybe even offensive." My response is to ask Tom or anyone to point to a statement by denialists about the science that is both true and outrageous. If they can find something, then maybe they have a point. Otherwise, not so much.