As I wrote the post below I felt uneasy with it, a few minutes later I realised that if I was happy with my twitter feed being in Public on my blog, why bother to protect it within Twitter itself. So I have changed back to an unprotected feed. What was I thinking. This was my original flawed logic:
Although I publish my twitter feed on my blog, I’ve decided to protect it. This might seem strange, but I just don’t like the idea of someone harvesting from the public feed. For some reason I just feel happier with people seeing my twitter feed in the context of my Facebook page, or my blog page.