It's about time someone described the phenomenon which has taken the country by storm- Denialism. See the denialism blog. Denialism is defined thusly-
Denialism is the employment of rhetorical tactics to give the appearance of argument or legitimate debate, when in actuality there is none. These false arguments are used when one has few or no facts to support one's viewpoint against a scientific consensus or against overwhelming evidence to the contrary. They are effective in distracting from actual useful debate using emotionally appealing, but ultimately empty and illogical
Yes, we are living in a modern society which deems evidenced based science and reason as merely an alternative way of interpreting the world.
Examples of common topics in which denialists employ their tactics include:
Creationism/Intelligent Design, Global Warming denialism, Holocaust denial, HIV/AIDS denialism, 9/11 conspiracies, Tobacco Carcinogenecity denialism (the first organized corporate campaign), anti-vaccination/mercury autism denialism and anti-animal testing/animal rights extremist denialism. Denialism spans the ideological spectrum, and is about tactics rather than politics or partisanship.
5 general tactics are used by denialists to sow confusion. They are conspiracy, selectivity (cherry-picking), fake experts, impossible expectations (also known as moving goalposts), and general fallacies of logic.