I read this and I thought, "Gee that's ridiculous. They won't really enforce it though, will they?."
Well, it appears that indeed they do. My husband's mom went to send us a care package from Japan and they told her she couldn't send it. In order to send food to the US the sender must file prior notice to the FDA according to to a whole rigamarole, with everything all labeled and accounted for. It's way worse than regular government form-ese. For sending a small food gift, it is totally outrageous. In Japan I'm sure it has now become impossible to send food to the US because no one at the post office will even want to start to deal with the US regulations.
I gotta write to my senator about this.