One’s perspective matters a lot in these cases. After the attacks on the twin towers on September 11, 2001, some Palestinians celebrated in the streets, a reaction that many Westerners took to reflect moral depravity. But when Americans celebrated after the killing of Osama bin Laden in 2011, or when Israelis hooted and cheered as bombs dropped over Gaza in 2014, the celebrants didn’t think they were doing anything shameful at all.
