Deaths of three teens a terrible tragedy for Israelis and people everywhere . Alan Elsner : Punish the killers but not families , others in a general offensive . Expanding settlements , harming families has never worked as a deterrence , he says . Comment: We are seeing some of the consequences of the collapse of Secretary of State John Kerry 's peace initiative in April . How Israel reacts will be decisive turning point for both Israelis and Palestinians .
Deaths of three teens a terrible tragedy for Israelis and people everywhere . Alan Elsner : Punish the killers but not families , others in a general offensive . Expanding settlements , harming families has never worked as a deterrence , he says . Comment: How Israel reacts will be decisive turning point for both Israelis and Palestinians .