Happens every time I fly from Europe to Newark, and then on to another US city. You go through customs, pick you bags up off one belt, walk a hundred meters, and put it on another belt. And in doing that you leave security so you have to do it all again!! Why not send bags automatically through?

You would have to go through security again anyways since you are coming off an international flight (same is true in japan, Russia, Europe).

As a US man travelling inside the country?

Because this is not about this case