HELP FROM MY FRIENDS. I want to acknowledge the kind remarks people, including some who I haven't heard from in years, have left in the comments and in electronic mails. Thanks, also, to supportive posts by Jim and Phil and John and King and Bill and Dave. (Those are the links I was able to locate on Site Meter and Technorati.)
Welcome, also, to readers from The Unofficial Stanford Blog and The Lede from the New York Times and Brickmuppet and Joanne Jacobs (who appears to be having server difficulties). Thank you for your interest. Look in again, when we might be able to think about academic culture, or economics, or public policy, or things that run on rails.
My doctoral training did not include anything on dealing with shootings.