I was fascinated by this week's Time magazine cover story when I read it this afternoon.

It tells how Bragança, a small mountain town in northeast Portugal, has seen an influx of hundreds of Brazilian prostitutes. The report raises many issues about globalisation, the free movement of labour and the laws of supply and demand.

What I failed to spot -- unlike the eagle-eyed Media Guardian -- is the double page ad in the same magazine encouraging readers to sample Portugal's many attractions.

"From dusk to dawn the possibilities are endless," the advert insists. "...Experience the thrill of world-class football in the afternoon, and spend the nights enjoying the Portuguese nightlife."

Such as the Brazilian prostitutes of Bragança, for example.