Depends on where you&#x27;re a tourist from. Coming from Australia, the visa was an auto-approved electronic thing. I arrived in LA, had a queue of about 3 people at customs, had a piece of paper stapled into my passport, and that was ripped out when I exited. The only way it could have been smoother was no visa required at all, or fewer people in the customs queue (not that 3 is something to complain about)<p>In the middle of my journey, I crossed the border at Nogales for an afternoon&#x27;s shopping - this was at the peak of &#x27;swine flu&#x27; and people scared of the border drug wars, so there were few palefaces (few = my companion and I, no others). Entry into Mexico was literally a turnstile. Entry back into the US? I went to present my passport and was just waved through.<p>Ironically the only &quot;border trouble&quot; I had in the US was crossing Texas, at a border checkpoint 100 miles inland, where a shouty man screamed at me for daring to have my passport in the trunk of the car... made me pull off to the side and wait for him to finish screaming at other people.