Outright impossible. You see, the US is far more spread out than Europe. You need only look at a map to notice the insurmountable geographic barriers that preve

Outright impossible. You see, the US is far more spread out than Europe. You need only look at a map to notice the insurmountable geographic barriers that prevent a Subway from being built closer to an apartment building. It simply can't be done. Wait, sorry, that's trains. You're talking about sandwiches. Let me check my notes...