The following is a bit of graphic insight into the realities of the Israeli blockade on Gaza. Photo from the Economist:
This has little to do with the entry of weapons, and much more to do with 'Fuck You.'
It's about inflicting pain on all residents of Gaza for the misfortune of being ruled by Hamas. What does this kind of ridiculous deprivation get Hamas? More support. And I suspect that may be how Bibi's government wants it (for the moment at least). (h/t Andrew Sullivan)