As a pilot (private), and one who averages more than a quarter million miles a year on commercial flights, I can assure you that there are no absolute guarantees. The safest form of transportation to be sure, but absolutely safe, hardly. Actually I was referring to much of the argument regarding hydrological issues that have been raised by models rather than the container testing. The point is that actual testing identified container issues and the switch to TAD was a result of that experience. We do have some long term experience with storage but most of it is in water rather than dry storage, and we are being forced to try to find a place that is in no one's back yard. Again, I don't think that there is a problem with developing large scale solar installation in the deserts of the west. That is not the only answer however. Some like to quote the amount of "unoccupied" land and say there is plenty of land available without considering that much of the arable land is in food production and natural forests are part of nature's system for removing carbon dioxide from the atmosphere. The interesting thing is that some would have us cut down forests to produce solar energy and at the same time truly believe that global warming is human induced without seeing the conflict. While the dream of plug-in vehicles dances in many heads, fueled with the output of wind, solar, geothermal, etc., the technology does not currently exist. I recently had to make a 2,000 mile round trip over six days. Since we were moving items from one home to another flying was not possible. The Prius consumed about 40 gallons of fuel on that trip, but the reality is that there is no EV out there where I could have even made the trip in six days, much less had 4 days to work on the other home. We may get there, but there are no guarantees and ignoring that which works and is proven in the hope that a useful technology will emerge is nonsense. If we don't use everything we have available, and get even further behind the power curve (pun intended) then we will never catch up since the current level of regulation does not permit rapid response.