It is too early to say anything definitive about the Hamas decision to apparently break the ceasefire and attack an Israeli position, except that if it is true, as reports indicate, that Hamas militants came through a tunnel and carried underground and back into Gaza a live Israeli captive, then this moment could represent not another terrible, dispiriting incident in a terrible, dispiriting mini-war, but a fairly decisive turning point in which all swords are unsheathed. This is assuming—as seems probable, but not 100 percent certain—that this raid is even what the Hamas leadership wanted (for what it's worth, its leaders, at the moment, seem to be owning this raid, suggesting that they are indeed doubling down in their war on Israel).