Jews in communities far from Israel gathered at synagogues this weekend for their first Shabbat services since Hamas militants attacked Israel, igniting an ongoing war. Rabbis led prayers of peace and shared grief with their congregations. At many synagogues security was tight. The deadly Hamas attack is not just another geopolitical event for Jewish people, explained one U.S. rabbi. It is drudging up generations of visceral trauma, especially in Pittsburgh – the city scarred by the deadliest antisemitic attack in U.S. history. "More Jews were killed last Shabbat … than on any other day since the Holocaust," said Rabbi Daniel...