Eyal Weizman critiques Israel's use of low-explosive "teaser" bombs, which, during the Gaza conflict, were fired "onto houses designated for destruction, with the intention of making an impact serious enough to scare the inhabitants into fleeing their homes before they are destroyed completely":

The new procedure is a twist on the established ‘knock on the door’ method, which involved telephoning a house – with a recorded message, or using an Arabic-speaking air-force operator – to inform the inhabitants that in a few minutes the building would be destroyed. Sometimes phones that had been disconnected for months because the bill hadn’t been paid were suddenly reactivated in order to relay these warnings. According to the Israeli military, during the last 24 hours of Pillar of Defence, thousands of such calls were made to residents of Gaza, warning them of incoming strikes. 

The purposes of these warnings:

To communicate a warning can indeed save a life. But the strategy is also aimed at changing the legal designation of anyone who is killed. According to this interpretation of the law, if a warning has been issued, and not heeded, the victim is no longer a ‘non-combatant’ but a voluntary ‘human shield’.

(The sun sets over the rubble of a destroyed Palestinian police station in Gaza City on November 27, 2012. By Patrick Baz/AFP/Getty Images)