For the first time since the war began, there are credible concerns of hunger in Gaza. The main indicator, as expressed both by Gazans and economists, is the price of food in the enclave, a variable that can at least be used to calculate supply and demand and therefore offers a general picture of the overall trend. And that trend suggests that a future hunger crisis might be on the horizon if nothing changes. The caveat—and it’s a big one—is that there is enough food in Gaza. Testimony of Gazans and videos of fat, ogreish Hamasniks stuffing their maws have...