In a speech to the Union for Reform Judaism in December, US President Barack Obama stated that “another threat to the security of Israel, the US, and the world is Iran’s nuclear program.” But, by this February, Obama was saying of Iran that “my number-one priority continues to be the security of the US, but also the security of Israel, and we continue to work in lockstep as we proceed to try to solve this…”
第一个变化是，美国及其西方的盟友都加大努力让伊朗政府放弃核计划了。这样做的部分原因是，国际原子能机构于2011年11月公布，伊朗确实在研发核武器，即将越过“红线”——越过这条红线将无法阻挡其进程。此外，美国及其盟友明白，不采取严厉措施将导致以色列采取单边的军事行动。