Five unoccupied homes in North Carolina’s Outer Banks collapsed into the Atlantic on Tuesday within a span of 45 minutes, officials with the Cape Hatteras National Seashore said, leaving the beach filled with “potentially hazardous debris.” The homes fell in the community of Buxton as Hurricanes Humberto and Imelda brought swells to the area, and officials said more collapses are possible. North Carolina’s coast is almost entirely made up of narrow, low-lying barrier islands that have been erodi