Ultrasonic attack can break into cell phones through a solid surface; Monkeys develop immunity to SARS-CoV-2 after first infection; Hiker finds two bombs from 1935 in a Hawaiian volcano; Commentary arguing that once a medical treatment comes into common practice, it persists long after it's found to be useless, or even harmful; and a Steem essay describing a dive to the USS Oriskany aka The Great Carrier Reef
