http://www.google.com/hostednews/afp/article/ALeqM5hiRmW6LJrSIvrbGP1dY_W2YpAaBw" [Broken] Bush refused to give Israel the codes the Israeli air force needs to safely overfly Iraq and he also refused to give Israel the most advanced bunker busters. The Obama adminstration has now publically spoken out against any hypothetical Israeli attack. From this we can conclude that the US now believes that the Iranian nuclear program is not a threat at all. Just like in case of Saddam's WMDs, the US is simply using the issue to keep the sanctions against Iran in place. This which gives the US a stronger negotiating position in future talks with Iran. But an Israeli attack on Iran would undermine this tactic, as that would lead to an Iranian counter attack on US forces in Iraq which would quickly escalate to a regional war or even a world war.