From Hersh's book: Ch. 17
"There was an ironic twist to the spy scandal, for the senior leadership of the Israeli government understood from the moment of the first collaboration with the French that the Soviets not only were the primary targets of the nuclear arsenal but would be among the first to be told of its existence. By 1973, Dimona's success in miniaturization enabled its technicians to build warheads small enough to fit into a suitcase; word of the bomb in a suitcase was relayed to the Soviet Union, according to a former Israeli intelligence official, during one of what apparently was a regular series of meetings in Europe between representatives of Mossad and the KGB. The
Soviets understood that no amount of surveillance could prevent Israeli agents from smuggling nuclear bombs across the border in automobiles, aircraft, or commercial ships.
Israel's leadership, especially Moshe Dayan, had nothing but contempt for the Arab combat ability in the early 1970s. In their view, Israel's main antagonist in the Middle East was and would continue to be the Soviet Union. Dimona's arsenal, known by the Kremlin to be targeted as much as possible at Soviet cities, theoretically would deter the Soviets from supporting an all-out Arab attack on Israel; the bombs also would give pause to any Egyptian or Syrian invasion plans."
"Israel, preoccupied by the Soviet threat, saw the expulsion as diminishing any real chance of war. On paper, Israel's army and air force were more than a match for even the combined forces of the Arab Middle East. Without Soviet backing, no Arab nation would dare to initiate a fight. There would be no peace, perhaps, but there was no immediate threat to continued Israeli control of the captured territories. This message came through loud and clear in the late summer of 1973 to Kenneth B. Keating, a former Republican senator from New York who was Wally Barbour's replacement as U.S. ambassador to Israel. In August, Keating and his deputy, Nicholas A. Veliotes, paid a courtesy call on Moshe Dayan, whom they found to be not just confident, but swaggering. There had been constant talk that summer of an impending Arab attack, Veliotes recalls, and the embassy had been put on a higher alert. Dayan was asked if he was worried. His response, recalled Veliotes, was " 'Don't worry.' He described the Arab armies in the desert as 'rusty ships slowly sinking'—as if the desert were a sea. It was very arrogant." Dayan's comments were accepted without challenge at the time, said Veliotes: "We had a great belief that the Israelis knew more than we did. We also were mesmerized by 1967"— the Six-Day War.