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.

From a small sporting shooting goods supplier in 1973, NIOA Group has grown to be a major munitions and weapons supplier to Australia's military and law enforcement organisations. Robert Nioa talks with SAA's Michael Shoebridge about the last 28 years building an Australian prime with industrial heft. They discuss how Australia's strategic environment and new partnerships like AUKUS provide the direction to NIOA's business, along with its deepening commercial connections into the US and with capable Australian and international partners.

In 12 years, Adam Gilmour has grown Gilmour Space to be able to design and build its own space launch rockets, satellite buses to carry users' payloads & now is running his own space launch facility in Queensland. He talks about the business principles that let Gilmour Space thrive & move fast, and why sovereign launch and space capacity matters to Australia's security.

This new Grumpy Strategists series talks with makers & leaders in Australian industry who are key to our security. Tom Loveard, the Chief Technology Officer and one of the founders of C2 Robotics is our guest. He tells us how 25 years of hard work & research has given us the 'overnight breakthrough' that is the Speartooth long range undersea unmanned vehicle. It can be made in thousands & available well before 2030 - which would start to give the Australian military mass relevant to the huge Indo Pacific.

The Grumpy Strategists answer the call from Australia's Embassy in Washington. They search for meaning in Defence's new religious texts - the Strategic Review and Defence Strategy - amongst the snowstorm of other reviews, strategies & plans. The new Workforce Plan gets a makeover - it's now beige. A Senate Estimates satellite highlight gets airtime, while the Chief of Navy and Deputy Prime Minister Marles show their mettle.

With a fire in the UK's sub construction facility & US sub production slowing, the only good news is that predictions of delay are apparently ahead of schedule....Meanwhile, a new Guided Weapons plan establishes two things: 1. Deterrence by Documentation, given the heavy weight of paper Australia can now bring to bear on itself & its adversaries - and 2. a shed CAN take 8 years to announce & build,