> we need to examine why American costs are so much higher than other countries I read a paper on the cost of building tunnels. I remember two factors. The per

> we need to examine why American costs are so much higher than other countries I read a paper on the cost of building tunnels. I remember two factors. The percentage cost of labor is higher than you might expect. And labor costs more in the US. And the US bids out contracts to place the risk if something goes wrong on the contractor. End result, fewer bids by only the largest contractors. And contractors pad their bids so they won't lose money no matter what goes wrong.