Leonard Cohen’s “Hallelujah” performed inside the 9/11 Memorial & Museum in 2019. Led by @choir choir choir and @rufuswainwright, the choir sang in tribute to first responders and the thousands of people who braved toxic conditions to clear debris from Ground Zero. We’ve added our full documentary about the performance to our YouTube channel. In “Rescue, Recovery & Healing: The 9/11 Memorial Glade Dedication,” you’ll see the sing-along of “Hallelujah” and hear from organizers about what it meant