The Navy last month considered launching a long-range experimental hypersonic flight test over the Atlantic Ocean toward target areas in the open sea more than 2,000 miles from Virginia, including points northeast of the South American coast and another roughly midway between the U.S. eastern seaboard and Western Sahara. The Navy Strategic Systems Program office considered an East Coast trajectory for Flight Experiment-2 of the common-hypersonic glide body that would have used launch facilities at NASA's Wallops Flight Facility in...