Sandblast advertises endurance and audits naval security

Sandblast demonstrated that a US nuclear submarine could remain underwater for months and leave an opponent uncertain about its whereabouts. A boat that disappeared could be loitering slowly or making a high-speed passage, while public speed figures gave only an incomplete indication of its capability. The operation also exposed weaknesses in American security when Triton photographed Guam without being challenged. Those internal findings sat alongside the public celebration of the circumnavigation.