The Midwest has been gripped by drought this year and water levels on the Mississippi River have fallen to their lowest marks in decades. That's bad news for farmers growing crops and for anyone trying to actually move those crops down the river to buyers. On this episode, we speak with grains expert and president of Ostebur & Associates, Ben Scholl, about the latest supply chain snarl in the US. We also speak with Mercury Group CEO Anton Posner and President Margo Brock about the important role that the Mississippi plays in the global supply chain. They walk us through the potential impact on a number of commodities — including steel, coal and other vital resources — and why the disruption might reverberate for some time to come.