"During the same 31/2-year period, Israeli military bulldozers have crushed 1,218 houses along the northern edge of the border between Gaza and Egypt, pushing back the city of Rafah and the adjacent refugee camp. A mile-long swath of broken concrete, splintered wood and twisted metal is all that remains of what Azizah Abu Anzah and others say was a close-knit community built by families and neighbors who gathered here a half-century ago in a cluster of U.N. tents."