It's an extremely toxic, dangerous material overall. The fear is well-founded in a geopolitically chaotic, variable world. Not to mention, in this case specifi

It's an extremely toxic, dangerous material overall. The fear is well-founded in a geopolitically chaotic, variable world. Not to mention, in this case specifically, they're going to strap it to a rocket and send it to Mars. Gonna be hard to sell people on the safety of the mission if we're potentially spewing nuclear material over thousands of square miles in the worst case scenario.