NUCENG, you are one of the bright lights in this thread. It has been said that a man's ability to understand something is directly affected by his paycheck depending on him not understanding it. You have consistently shown a willingness to be open-minded and willing to suffer the slings and arrows of some of the more anti-nuclear people who show up here from time to time. If the industry as a whole had people like you leading it we would all be in a far better place than we are today. (I am no fan of Arnie Gunderson, but you are right IMO with respect to some of his points.) Kudos to you, sir.