I said SUPPOSE. Suppose the purpose of border security with mexico had nothing to do with illegal immigration - suppose Mexico was an economic shangri-la and no one was crossing into the US. what then would be the purpose of border security with Mexico? national security. so if we apply the same "odds maker" theory, we wouldn't need any of it, since the chances of catching a terrorist crossing is small.
Your supposition is irrelevant if them Mexicans are still allowed to migrate to the States legally. To habeus corpus OR not to habeus corpus. That is the question.
Hey, a little Latin doesn't hurt. I think I used the expression correctly, didn't I? ;)