I live near a rail yard, and there's a surprisingly high number of ADM tankers running through the yard. It's my understanding that they usually contain vegeta

I live near a rail yard, and there's a surprisingly high number of ADM tankers running through the yard. It's my understanding that they usually contain vegetable oil or corn syrup. What I find most disconcerting is when I see milk trailers on the road. I've also seen Purina carry pet food ingredients in tankers, with a label that says "inedible" right under "pet food".