While New York was preoccupied with student protests over the US’s support of Israel’s war in Gaza last week, another aspect of how the city with the largest Jewish population outside Israel is coming to terms with bloodshed in the Middle East was being prepared. On Wall Street, a gruelling exhibition has opened detailing the horrific attack on the Nova music festival by Hamas terrorists on 7 October, in which 364 people were murdered, many wounded and 44 taken hostage. It is a walk-through recreation of hours of unimaginable brutality by the attackers, containing the tents, bedding and possessions of...