I've just this moment read this same article. Hopefully (for them, the Israelis) they'll soon realise they're being led into an inescapable trap. But I wonder if enough damage has been done already - their rightly or wrongly marauding neighbours won't quickly forget such a well-documented and explicitly covered blanket punishment with the hallmarks of holocaust. Hamas know, with their very young Palestinian population, that they've a new generation of fighters being perfectly nurtured with loss and hate inflicted by Israel, which will be increasingly poised to fight on with added sympathy and aid from abroad. Israel must know this - so should Israel finish them absolutely all off?
Hamas is grim and I'd love to see it rot, but I don't like Israel very much at the minute. Reminds me of the Taliban, but with nukes.