According to a very confidential source, engineers currently working on the Waller Creek tunnel believe that Austin sits on top of some of the most optimal conditions for tunneling in the entire U.S. These number-crunching problem solvers claimed that a subway tunnel beneath the Texas State Capital’s downtown would cost 1/10th of the amount it would in most places in the country. However, the brainiacs also said that there are those in high places who do not want that knowledge spread around (read TxDOT) because the construction of more freeways is making certain people a great deal of money.