These few companies would much rather sell what they already are building than risk innovation. As a result, it is to their great benefit to discredit any new approach so as not to have to compete with it. The dollars at stake are enormous. Here in Washington State, we have a strong memory of the WPPS nuclear plant debacle. We are very sympathetic to this argument.
Any new approach has some risk to it.
It is possible to build a new type of transportation system using currently available technology, that is not only efficient, but effective and we can certainly build one for less than it costs to build the tunnel. You will see specifications for such a system on this web site. There is one way that we can get a system built that will effectively meet our needs. As long as system suppliers believe that we will back down and allow them to sell us what they already make, our dismal record will have another page. It would seem to make sense that innovative new systems that benefit everyone would be funded at the broadest level of government possible.