BAR editor Hershel Shanks (facing camera) and excavators Ronny Reich (top left) and Eli Shukron stand alongside the top of Warren’s Shaft, a natural vertical opening at the heart of Jerusalem’s water system. Archaeologists have long believed Warren’s Shaft was used to draw water—an idea recently challenged by Reich and Shukron. Avraham Faust, in the accompanying article, offers a counter-challenge, arguing that the shaft was indeed used to draw water.