These are one of the few scenes where Michael breaks his stoicism and actually displays anger. He is heartbroken by the betrayal of his brother and at the same time as head of the mafia family he knows he has to take action. And that action means killing his own brother. In italian culture this is "kiss of death." This scene also shows difference between Vito snd Michael. For Vito family is everything but Michael rules by absolute ruthlessness; no lose ends. Movie Metadata Title: The Godfather P