Of all the revelations that have rocked the Israeli army over the past week, perhaps none disturbed the public so much as the video footage of soldiers forcing a Palestinian man to play his violin.
The incident was not as shocking as the recording of an Israeli officer pumping the body of a 13-year-old girl full of bullets and then saying he would have shot her even if she had been three years old. Nor was it as nauseating as the pictures in an Israeli newspaper of ultra-orthodox soldiers mocking Palestinian corpses by impaling a man's head on a pole and sticking a cigarette in his mouth.
But the matter of the violin touched on something deeper about the way Israelis see themselves, and their conflict with the Palestinians.
The violinist, Wissam Tayem, was on his way to a music lesson near Nablus when he said an Israeli officer ordered him to "play something sad" while soldiers made fun of him. After several minutes, he was told he could pass.
It may be that the soldiers wanted Tayem to prove he was indeed a musician walking to a lesson because, as a man under 30, he would not normally have been permitted through the checkpoint.
But after the incident was videotaped by Jewish women peace activists, it prompted revulsion among Israelis not normally perturbed about the treatment of Arabs.
The right wing Army Radio commentator Uri Orbach found the incident disturbingly reminiscent of Jewish musicians forced to provide background music to mass murder.
"What about Majdanek?" he asked, referring to the Nazi extermination camp.
The critics were not drawing a parallel between an Israeli roadblock and a Nazi camp. Their concern was that Jewish suffering had been diminished by the humiliation of Tayem.
Yoram Kaniuk, author of a book about a Jewish violinist forced to play for a concentration camp commander, wrote in Yedioth Ahronoth newspaper that the soldiers responsible should be put on trial "not for abusing Arabs but for disgracing the Holocaust."
"Of all the terrible things done at the roadblocks, this story is one which negates the very possibility of the existence of Israel as a Jewish state. If [the military] does not put these soldiers on trial we will have no moral right to speak of ourselves as a state that rose from the Holocaust," he wrote.
"If we allow Jewish soldiers to put an Arab violinist at a roadblock and laugh at him, we have succeeded in arriving at the lowest moral point possible," he wrote.