GAZA CITY—Amin Sabri’s battered tent was among several sitting at the foot of a hillside of rotting garbage towering some 25 feet in the middle of Gaza City. Barefoot children, their clothes caked in grime, scampered nearby. Flies were…

GAZA CITY—Amin Sabri’s battered tent was among several sitting at the foot of a hillside of rotting garbage towering some 25 feet in the middle of Gaza City. Barefoot children, their clothes caked in grime, scampered nearby. Flies were…