Found this today in Ha'aretz:
When Joe Biden was asked about the prospect of an Israeli attack, he said, "though I cannot answer the hypothetical questions you raised about Iran, I can promise the Israeli people that we will confront, as allies, any security challenge it will face. A nuclear-armed Iran would constitute a threat not only to Israel - it would also constitute a threat to the United States."
Meanwhile on Monday, Defense Minister Ehud Barak has said that Iran does not pose an existential threat to Israel. "Iran isn't an existential threat to Israel at the moment, but it has the potential to develop into one, and we are working to prevent that," said Barak, speaking before the Knesset's Foreign Affairs and Defense Committee.
Amazing, no? It's like somebody gave these two clowns the wrong scripts...
Either that, or Biden intends to run for a Knesset seat when he is done as VP.