> You're really blowing off something incredibly difficult, more difficult (politically and financially) than putting someone on the moon.

You're probably right, but I also think that the main roadblocks are political, not financial. The US has one of the highest GDP/capita in the world but consistently fails to apply this economic power to helping its own citizens or does so in extremely wasteful ways like creating jobs through military spending.

Edit: Also public infrastructure isn't just transport. There are cities in the US that do not have safe drinking water. It's shocking.