Could one remote Australian mine be a warning sign for the world? This week, Bloomberg Opinion columnist David Fickling talks to Chris Bourke about the revival of King Island's century-old tungsten mine, and how it reflects a new era of geopolitical competition as countries race to secure supplies of the little-known metal for weapons and munitions.

The conversation explores China's dominance of the tungsten market, Australia's untapped reserves and why decades of globalization left Western economies exposed to critical mineral supply risks. Fickling explains how one obscure mine offers a window into the race for critical minerals, the changing nature of war and the global scramble to secure strategic supply chains.