Crossing borders

The US and Canada boast the world's longest undefended border, and in the eyes of much of the world, their populations are nearly interchangeable, with only a subtle 'eh' distinguishing them. But while there is no barbed wire or wall, the border is in fact very heavily defended – by an army of bureaucrats. The ordeal of being interrogated by these officials can transform the most blameless individual into a quivering, shifty-eyed bundle of irrational guilt. I have crossed the English