Stephan:   Friday morning, as you read this, I will be in the air headed for China. I have been invited to speak at several conferences and am pleased to be going because I have not been to China since 1989, and it is a different country in 2017 than it was nearly three decades ago. I am going to try to do SR, but I have been told that I can't access Google or the other search engines I routinely use, and may not be able to publish in any case. So, I am going to try, but it may not work. In that case there will be no SR until I return on 1 November. My apologies for the interruption; one possible upside is that I will write something about the trip and try to give my readers a sense of what I experienced and learned. -- Stephan