Because the country has people relying on it to keep them safe? No system the size of a state is perfect, and heck I don't think what is being proposed here is

Because the country has people relying on it to keep them safe? No system the size of a state is perfect, and heck I don't think what is being proposed here is perfection. I do not want to wait for a very slow-moving-system to decide if, say, an ingredient is a threat to human health. If you say we should fix this by a constitutional amendment to allow federal agencies to operate the way they are now? Sure! However in the meantime I'm not going to advocate for breaking the current system and extending suffering for people just to follow a documented written centuries ago.