On 60 Minutes how has a secret weapon brought down hundreds of high-ranking United States government workers? Plus kayaker Jess Fox is profiled.

Havana Syndrome
Some people might applaud the ingenuity; most though would condemn the barbarity. A secret new weapon has apparently been developed and is being used to target hundreds of high-ranking United States government workers. Those affected include diplomats, military officials, and spies, who believe they've been struck down in mysterious circumstances by strange energy waves. After being attacked, the victims report a range of debilitating neurological ailments that have seriously impaired their lives. In this special report for 60 Minutes, Dimity Clancey investigates the so-called "Havana Syndrome". The condition got its name because it was first detected in Cuba, but there are no prizes for guessing it's another country accused of engineering it.
Reporter: Dimity Clancey
Producers: Garry McNab, Nichola Younger

Rapid Success
Between them, Jess Fox's parents, Richard Fox and Myriam Fox-Jerusalmi, won 18 world titles in paddling, and were trailblazers in the sport. It's little surprise then that from the moment Jess was born, she was destined to have the considerable skills and daring needed to race down rapids in a kayak and a canoe. What wasn't predicted was just how successful she'd become. Experts now say Jess Fox is the greatest paddler of all time. And as Adam Hegarty reports, that's the best news for Australia as this champion prepares for the Paris Games. It will be her fourth Olympics, another extraordinary feat, but even more significantly for Jess, this time there's the strong chance she'll be joined by a very special team mate: her sister, Noemie Fox.
Reporter: Adam Hegarty
Producer: Lisa Brown

Patriot Games
Who is the real Daniel Edmund Duggan? It's a simple question, but the answer is highly contested and has enormous consequences. For his family and a large group of supporters, he's a hero. A former U.S. Marine fighter pilot turned proud Australian citizen; a loving husband and devoted dad. For others though, namely the United States government, he's a traitor, accused of supplying China with top-secret military information. For the past 19 months, Duggan has been sitting in Australian prisons fighting attempts to send him back to the United States. As Dimity Clancey reports, a decision about his extradition is expected within weeks, but if the Americans get a hold of him and can prove the allegations, he faces up to 65 more years locked up. It's a thought his wife Saffrine and six children are struggling to comprehend.
Reporter: Dimity Clancey
Producer: Lisa Brown

Elon Musk's Crash Course
For all of his futuristic vision and entrepreneurial drive, billionaire Elon Musk's bold mission to build a fully autonomous car is stalling. His company Tesla is facing increasingly serious questions about the safety of its self-driving technology. A major investigation by a U.S. regulator, the National Highway Traffic Safety Administration, has linked Tesla's autopilot feature to hundreds of crashes, many of them fatal. NHTSA says drivers have been lulled into a false sense of security about the cars that isn't matched by reality. And it gets worse. There are also accusations that Musk and Tesla talked up the self-driving capabilities of the vehicles so much that they may have committed fraud by misleading investors and consumers.
Reporter: Amelia Adams
Producers: Garry McNab, Emma Schwartz

Giant Leap
It's important to be reminded that sometimes what we think is impossible isn't. Fourteen years ago David Mzee suffered terrible spinal injuries after an accident on a trampoline. He was told he'd be a wheelchair-dependent paraplegic for the rest of his life. That was news David didn't want to hear, so he didn't listen. All he wanted was to walk again. And as he shows Adam Hegarty, with much perseverance and great help from a lot of very smart people, he now does.
Reporter: Adam Hegarty
Producer: Sammi Taylor