Safety and security is the key area that differentiates the generation III+ reactors from the generation II reactors. So technology base aside, I think there's been a lot of progress.
I sometimes like to use the analogy of being in a DC-3 aircraft designed and built many decades ago versus going into a modern aircraft that has all of the electronic suite in it. This is kind of a good analogy for thinking about how the new design of nuclear plants is being handled. I mean, you can go into a new aircraft and the thing practically flies itself. There are many time-redundant safety systems involved.
To me that's the major difference in safety between these generation III+ reactors and the older ones. I thin the nuclear industry generally has a very good track record for safety. Whether it's CANDU or any of the AREVA reactors, I don't think there's a difference in the safety record. In terms of crash resistance, generation III+ reactors, our new reactors, can withstand a crash of any known aircraft that exists today, with no radiation release into the atmosphere.