For the leaders of U.S. Jewish institutions, the recent attacks in Boulder, Colorado , and Washington, D.C., are stark reminders of their responsibility to remain vigilant despite years of hardening their security measures and trying to keep their people safe.

Now, they’re sounding the alarm for more help after a dozen people were injured in Boulder while demonstrating for the release of Israeli hostages in Gaza on Sunday. And just over a week earlier, two Israeli Embassy staffers were fatally shot outside a Jewish museum in Washington.

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