Today on In Case You Missed It: The nation's largest vision insurance company, VSP, is beta-testing wearable health-tracking glasses and somehow they don't even look ridiculous. An autonomous robot submarine is patrolling coral reefs and killing the starfish that normally eat coral, to preserve the reef. (So many conflicting feelings, amirite?) And MIT researchers are back with another 3D printer to blow your mind. This one is machine-vision enabled, meaning it can scan as it prints and correct itself.