And nothing inspires as much shame as being a parent. Children confront us with our paradoxes and hypocrisies, and we are exposed. You need to find an answer for every why — Why do we do this? Why don’t we do that? — and often there isn’t a good one. So you say, simply, because. Or you tell a story that you know isn’t true. And whether or not your face reddens, you blush. The shame of parenthood — which is a good shame — is that we want our children to be more whole than we are, to have satisfactory answers.

I often think about how my sons will come to know about September 11th. Something overheard? A newspaper image? In school? I would prefer that they learn about it from my wife and me, in a deliberate and safe way. But it's hard to imagine ever feeling ready to broach the subject without some impetus.

I spent my life learning to feel less.

There were things I wanted to tell him. But I knew they would hurt him. So I buried them, and let them hurt me.

A map such as that one is worth many hundreds, and as luck will have it, thousands of dollars. But more than this, it is a remembrance of that time before our planet was so small. When this map was made, I thought, you could live without knowing where you were not living.

Find a printer paper and imagine a full-grown bird shaped something like a football with legs standing on it. Imagine 33,000 of these rectangles in a grid. (Broilers are never in cages, and never on multiple levels.) Now enclose the grid with windowless walls and put a ceiling on top. Run in automated (drug-laced) feed, water, heating, and ventilation systems. This is a farm.

He removed several pages of death certificates, which were picked up by another breeze and sent into the trees. Some would fall with the leaves that September. Some would fall with the trees generations later.