Israel's military offensive has turned much of northern Gaza into an uninhabitable moonscape. Whole neighborhoods have been erased. Homes, schools and hospitals have been blasted by airstrikes and scorched by tank fire. Some buildings are still standing, but most are battered shells. Nearly 1 million Palestinians have fled the north, including its urban center, Gaza City, as ground combat intensified. When the war ends, any relief will quickly be overshadowed by dread as displaced families come to terms with the scale of the calamity and what it means for their future. Where would they live? Who would eventually run Gaza...