That doesn't make sense to me, where would they deport you to? You'd be a citizen of the US, not the country you were coming from. What if your visa in that c

That doesn't make sense to me, where would they deport you to? You'd be a citizen of the US, not the country you were coming from. What if your visa in that country was expired? Would the two countries just deport you back and forth until one got bored? It doesn't make sense to me that a US citizen, in the US not at any sort of border, could be deported under any circumstances.