Dear Paul,

I have been meaning to write to you for some time, and the tenth anniversary of the beginning of the Iraq war provides as good an occasion as any to do so. Distracted by other, more recent eruptions of violence, the country has all but forgotten the war. But I won’t and I expect you can’t, although our reasons for remembering may differ.

Twenty years ago, you became dean of the Johns Hopkins School of Advanced International Studies and hired me as a minor staff functionary. I never thanked you properly. I needed that job. Included in…