Though the authors note as a curiosity that campaigns against secondary smoke predated the evidence that it did any harm, they show no desire to explore this seemingly reversed causality.

ECONOMIST: A question of dodgy science

And though some have been skeptical about choosing Indy as a host city for a variety of reasons (e.g. city size, potential weather concerns), the preliminary evidence from the secondary ticket market seems to indicate that fans from the Northeast will be in greater attendance than they were when the two teams met in Super Bowl XLII in 2008 in Glendale, AZ.

FORBES: Early Evidence: Northeast Consumers More Likely to Attend Super Bowl Rematch in Indy

The city can effectively ban them by claiming it is doing so to prevent litter, traffic, lowered property values or other secondary effects it claims the business may cause (and needs scant evidence to support the regulation).

CNN: Chick-fil-A and free speech

He argues that the EPA relied heavily on secondary sources in producing its endangerment finding and that the agency has "absolutely no evidence" linking increases in CO2 to adverse health effects.

FORBES: Climate