Question: Why does Norton lie and say that he "has company" and then make De Niro wait longer during the robbery? Sure, Norton double crosses him later, but wouldn't making his partner wait put both of them in danger of getting caught since it delays them and increases their chances of getting caught?
Question: During the sequence in the vault, De Niro uses a kind of torch. This torch emits sparks and is powerful enough to cut steel but is small enough to take with him. Is there such a torch? And if so what does it use for heat?