The Navy's marquee surface combatant force -- the aircraft carrier strike group -- is equipped today with technologies capable of defeating adversary maneuvering hypersonic weapons, a top admiral told Congress, suggesting the sea service has stitched together a shield to defend against a new class of ultra-fast weapons widely viewed as invincible. Sen. Angus King (I-ME) today posited a hypothetical question to Navy leaders during a Senate Armed Services Committee shipbuilding hearing: "Can you defend yourself?" "If I have a...