Peter Chen is back: Responding to backlog of Comments now

Hi all, sorry for the delay in approving your comments and responding to them. I am back from medical leave. Nothing serious, just warded for observation because of low blood sodium level. It was a long stay - almost 2 weeks. But it was a much needed rest. Now I have some 121 comments to go through in 3 blogs and more in blogs using different Blogger account:For those whose comments are in those