In a few decades St Louis won't have such crappy energy sources, and if they do, their electricity prices will be sky high because they made poor decisions.

Additionally, pollution concentrations matter for cities, specifically dumping the exhaust out right next to people vs. dumping it at remote locations where it has more area to dilute before encountering people.

The long tail pipe hypothesis seems to be a bunch of people trying to desperately prove that electric cars are no better, but they have to resort to extreme cases to try to justify their positions. 36mpg which pollutants? Certainly not all them. CO2 from pure coal is something like a 50 mpg car. And as we get rid of these inferior and more expensive sources of electricity, electric cars will only increase their lead over gas vehicles.