Edit: fine. I guess some people here need the talk. This is about the phenomena of men traveling from rich countries to poor countries to engage in sex with children. Not this guy, but it does happen. These men often return with digital images stored on laptops and cellphones. Possession of such images is illegal in canada and so Canadian boarder services targets men who fit the profile of a potential "sex tourist". The term is a polite euphemism for a darker profile, not a literal reference to having sex while being a tourist.