The US military may have added the weapon used to create the mystery illness Havana Syndrome to its ever-growing arsenal following a clandestine deal. The Department of Defence has reportedly spent the last year testing a device it had purchased following an undercover operation that was believed to be behind unexplained illnesses plaguing American spies, diplomats and troops. These have long been collectively termed "Havana Syndrome", although they are officially known as "anomalous health