So, imagine this, you're standing in front of a massive nuclear reactor core, just waiting to be harvested. But not just any old material - we're talking about weapon's grade uranium. Now, you might think this sounds like something out of a sci fi movie, but in reality, it's a process that actually happens in some facilities around the world. And today, we're going to take a closer look at how this fascinating (and potentially dangerous) substance is extracted from the depths of a reactor....