Britain's Queen Elizabeth II and Prince William, right, watch a demonstration of a Forensic Explosives Investigation with explosives detection dog named 'Max' during a visit to the Defence Science and Technology Laboratory (DSTL) at Porton Down, England, Thursday Oct. 15, 2020, to view the Energetics Enclosure and display of weaponry and tactics used in counter intelligence. (Ben Stansall/Pool via AP)