East Jerusalem to Amman should have been an easy trip: a short drive down to the Dead Sea, across the border checkpoint and swiftly on to the Jordanian capital. But in the early summer of 2024, the distance appeared an almost insurmountable obstacle to humanitarian workers from Unrwa (the United Nations Relief and Works Agency for Palestine Refugees), as they sought to safeguard huge quantities of archival documents vitally important to decades of recent Palestinian history. A 10-month operation to save the archives kept by Unrwa in Gaza and East Jerusalem was reaching its final stages. The effort had been highly sensitive and sometimes dangerous. It had already involved dozens of Unrwa staff in at least four different countries, risky trips to rescue documents under bombardment, officials carefully carrying unmarked envelopes into Egypt, and precious boxes airlifted to safety in military planes. But now time was running out.…