 So I think they've done that because then that means that when they get into our body, they don't want them to break down because they're reserved for medical use. But we'll go over the top five contaminants that's in our water today that is undeniable. And one of them hits close to home for me is antibiotics. And how many people out there have an infection or a bacteria that's resistant to antibiotics? And you just wonder, Paul, what it's going to take for...