Don examines a chunk of the Titanic's hull that's related to a new theory about the sinking of the ship, a US Army drone behind a starlet's big break and an electric tricycle with a fatal flaw.<hr><p style='color:grey; font-size:0.75em;'> Hosted on Acast. See <a style='color:grey;' target='_blank' rel='noopener noreferrer' href='https://acast.com/privacy'>acast.com/privacy</a> for more information.</p>