This is a draft I am working on for a leading US publication. For many regular readers it will be nothing new. But while there are several things I am probing at the moment which I would normally use my blog space to tease out, time is short this week (really) and so I have to combine things. In other words, the blog space and time today is being used to fulfill commitments with very tight deadlines. But, putting the arguments together in this way might just provide some different angles for people who haven’t thought about things in this way before.