If the murder of 20 children by a "crazed" lone gunman evokes Holocaust memories, why didn't the systematic killing of another 30 Palestinian children in Gaza just weeks ago -- as part of a massacre which, unlike the Sandy Hook killings, was carried out with the overwhelming approval of Israelis and Americans (whose government provided the funds and weapons for the slaughter)? Historical memory is of little use when governed by upside-down priorities. Even in the trigger-happy U.S., such mass shootings are rare; on the other hand, destruction of the Palestinian people has been a commonplace for decades. What is more, Israeli and U.S. citizens bear little responsibility for the acts of an isolated criminal, but much more for state policies that require periodic mass killings, as in Palestine. Holocaust "memory" ought to take such obvious factors into account. Before we criticize video games as the cause of all evil, why not consider the violent consequences of militarism, apartheid and racism -- and maybe urge those responsible to shed a tear over that?