On the contrary, Nura, the prospect of Iranian casualties is horrific to myself and many others. We can only hope that any potential Israeli strike would be limited to military facilities and would not involve large numbers of casualties. You may well say "one life lost is too many", and of course you are correct. However, Israel's leaders are faced with a country whose leader has publicly, numerous times, called for the destruction of Israel, and who is developing the technology to do just that. What would Iran do, I wonder, if Netanyahu were to publicly declare his desire to kill every Iranian, repeatedly, and then start developing a nuclear weapons program? I suspect Iran would then not be too concerned about Israeli casualties in any pre-emptive strike. It's worth noting, by the way, that Israel has NEVER threatened to kill every Iranian, or any other nation's people, for that matter.
Protests in southern Syrian city after Druze cleric's death (AP)
from the article: The secret behind an Iran war order