I am not all that interested in collecting the columns I have written, but there is something I would love to do: publish a selection of my columns in which I engaged with certain personalities, and whose responses ran in my column space or in the neighboring letters page. The introduction for each exchange could include an overview of the issue at stake and an attempt to bring the matter up to date. And after the columns and responses, we could have a last word of sorts — with columnist and correspondent alternating. I hope to use this unusual format to drive home a point: that public discourse, in itself, is important. Possible title: Arguments at the Newsstand.