To the very last [at his trial], Eichmann appeared emotionless, a human iceberg. Only once did I see him show any expression other than injured innocence. Films of the concentration camps were being screened in the courtroom. The houselights were out, but from the control booth, on a monitor, I could see the close-up of Eichmann. As the corpses of Bergen-Belsen were bulldozed into their final pit, Eichmann, on camera, smiled.
Alan Rosenthal, "Eichmann, Revisited" in The Jerusalem Post (20 April 2011)