Did Yigal Amir know that during the Security Agency’s initial interrogation, on the night he assassinated Yitzhak Rabin, he was almost killed by the "Shabak" agent charged with protecting him?

Dvir, that "Shabak" agent, conveys the failure of the “Jewish Unit” to prevent Rabin’s murder; a failure that he tried to erase with his quest to kill Yigal Amir.