Israel this week again laid bare the old, grim juxtaposition that marks its birth: As it celebrated the 70th anniversary of the state's founding, thousands of disenfranchised Palestinians marched to one of 500 demolished villages to mourn their own "catastrophe," victims of the violence on both sides held an alternative ceremony to honor "the void created by loss,” and Israeli right-wingers nearby chanted "Death to the Traitors." 70 years on, the ugly chasm seethes.