The major sensitive nuclear sites are underneath a mountain. The only stuff that can be bombed are nuclear power plants - which are dfinately not part of a nuclear weapons programme. Even if there were weapons programmes that could be attacked, all it would do its slow the developemnt of nukes, but make it inevitable that Iran would need them. So what would this attack be supposed to achieve? What are the aims? How would success be measurred? I rather think that Israel would simply manage to destroy a bunch of convenytional military capability and do a lot of damage to civillian infrastructure. The real consequences would be to massively unite Iran, re-inforce Ajmadinejad's position, provoke counter attacks and likley incentivise Egypt, Syria and others to develop a nuclear capability. Israel is staring down the barrel of a massive massive own goal. If stupid enough, then I suppose Israel deserves the consequences.
4 UN peacekeepers injured in Sinai and taken to hospital in south Israel (Haaretz)
from the article: Report: Netanyahu ordered Shin Bet to investigate leaks on Iran attack