Meet the people that make the food you eat every day

Canola, cropping and Chappell Roan: here's what it's like on the back of a harvester during harvest season.  And Trump reckons he can end the war in Ukraine in 24 hours. Plus, could LEDs put a stop to shark attacks on surfers?  Guests: Dr Jessica Genauer, senior lecturer in international relations, Flinders University Dr Laura Ryan, research fellow in comparative neurobiology, Macquarie University Nick McKenna, agronomist