I'm off to Cincinnati for two weeks. This will be my first time back to America since 1999 and I am wondering what is awaiting me, what my impressions will be. Usually the other times I returned there was a brief period of what I call "reverse culture shock" and then I felt completely at home again. But what about now? Have things changed irreversibly since 9/11? I intend to write down my impressions and will report them here when I am back in April.