Episode 1 of the Great Debates -on topics in Australia that need discussion but are reduced to shouting matches from inside closed bubbles. Green shirted Marcus is Mr Renewables and black suited Michael is the pro-nuclear Darth Vader of the episode. Listen to hear if a civil chat about radioactive waste, windfarms and Australia's energy mix is possible.

SAA's Marcus Hellyer talks with Rob Kremer, Kinexus' Director and Defence Sector lead about defence industry prospects and pressures. Rob puts the workforce demands by Defence into a wider economic and societal perspective to set out effective strategies for government and companies. Australian cities have quite different skills concentrations and demographics that flavour the necessary approaches.

Michael Shoebridge talks with Paddy Gregg, CEO of Austal, about the company's history as a builder of commercial and military vessels for decades now. We discuss its stocked up order book both here & in the US, and the future, including Australia's general purpose frigates. Austal USA is making command modules for US Virginia Class submarines and is the biggest revenue earner for Austal, while at Henderson, Austal is ramping up fast with landing craft orders. Hanwha's bid is covered, with Paddy giving his perspective as the CEO of a publicly-listed company.