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Certainly it's true that our cities aren't walkable *in general,* but plenty of them (especially here in Massachusetts) have walkable parts--Northampton, where I live, has a charming town center full of shops, eateries, and bars, all fitting in less space than a large mall.
Northampton, I'm afraid, is the exception, not the rule. The next HSR line to built in this country will be Dallas to Houston. It's a non-car connection between two cities that require cars.
