We can debate endlessly, but we civilians don't know what the real military options are.

Realistically, might precision strikes by the Israelis effectively delay the Iranian production of nuclear bombs for longer than a few years?

What are the percentage chances that a quick offensive could be successful?

Might the consequences of such actions be 'tolerable', especially if other nations, (read US), were prepared to intercept Iranian retaliatory missiles? By 'tolerable' I mean the amount of damage incurred by Iranian retaliation and the possibility that additional retaliatory actions would be initiated by other nations or groups in support of Iran.

The only thing we really do know is that the Middle East, and, in fact, the world will be at far greater risk on the day Iran can use a nuclear weapon.