"Um. Not that I've heard of yet, but I haven't been on the big trucks," Jack admits. "This was in the camper I found the key to."

Does he know what a medsystem is? No. Can he guess? Yes. It seems pretty obvious. He closes the box and hugs its poor, unacceptable contents against his chest. "They do have those shields coming from the Convoy trucks, though, and I've never seen anything like that before, so maybe there is one."