They're targeting civilian areas where they think Hezollah is hiding amongst civilians. Regardless of whether or not Hezbollah is actually hiding there, which remains open to debate, the fact of the matter is that Israel is targeting civilians in their attacks, thereby invalidating your earler statement that they are doing no such thing.
I've said it before and I'll say it again:
If Israel were targeting civilians, if Israel were trying to kill civilians, do you
really think the death count would be what it is?
It's like the guy who beat another person with a loaded shotgun. In court, the guy was charged with Attempted Murder, but in a precedent-setting ruling, his lawyer got him Aggravated Assault - and for once, it made perfect sense. Why? The argument was that the guy had a loaded shotgun, and had he actually been trying to kill the other person, he could have simply shot him. The fact that he didn't - when he could have - indicated to the judges that the guy was
not trying to kill the other person.
The lesson here is that if you want to beat somebody up with a projectile weapon, make sure it's loaded - if not, you may have no basis on which to prove a claim of Aggravated Assault, and may be charged with Attempted Manslaughter.
In case you missed my point in all that: Israel could kill lots and lots of civvies if we were trying to. We certainly have the means to. The fact that we're not should indicate to anyone with a functioning noggin that killing Lebanese civvies simply isn't our goal.