We are aware of the studies done by the United States Geological Survey. It is a world-class organization and I believe that the work was done well. The results are based on solid, concrete data. The significance of the metal deposits in the soil is something that has still to be determined. It is very difficult to determine the exact size and concentration of the deposits. Statistical work must still be done in order to get an approximate idea of the amount of metals. So that does not come from actual direct observation of what is there.
