On Tuesday, CNN's Wolf Blitzer hosted Hamas spokesman Osama Hamden. The week before, Hamdan labeled Israeli Prime Minister Benjamin Netanyahu "a new image of Hitler" on the network. But now, for some reason, Blitzer stumbled into a random act of journalism: He asked Hamdan about comments he had made suggesting that Jews used Christian blood in matza. Hamdan stumbled around and blamed the Jews for their action in Gaza. Blitzer called Hamdan's comments an "awful, awful smear." The very fact that this represented a unique moment in the media coverage of the Israel-Hamas Gaza war demonstrates the malpractice of...