I'm wanting to cross the border over into Mexico to get some dental work done. However, I'm currently on parole. I already have a passport so that is not an issue for me. What my concern is, when you enter the US as a US citizen, do they automatically run some kind of criminal background check to see if you are an ex con or current parolee? I realize that they would have to allow me entry into the US as a citizen, but if they run a check, would they require me to show some kind of travel permit from my PO? I'm not worried about entering into a foreign country because I recall when traveling in Europe (prior to my conviction), that it most definitely did not seem as though they ran any kind of criminal check when they swiped my passport. In fact, when I was traveling, I had active warrants in the US and no one said one word. They didn't even say anything when I reentered the US even though the US Marshall had a "hold" on my passport. Well, at least that is what they said. With those guys, you really can't believe much of what they say. Any opinions?