For the inhabitants of the first world – the increasingly cosmopolitan, extraterritorial world of global businessmen, global culture managers or global academics, state borders are levelled down, as they are dismantled for the world’s commodities, capital and finances. For the inhabitant of the second world, the walls built of immigration controls, of residence laws and of ‘clean streets’ and ‘zero tolerance’ policies, grow taller; the moats separating them from the sites of their desire and of dreamed-of redemption grow deeper, while all bridges, at the first attempt to cross them, prove to be drawbridges. The first travel at will, get much fun from their travel (particularly if travelling first class or using private aircraft), are cajoled or bribed to travel and welcomed with smiles and open arms when they do. The second travel surreptitiously, often illegally, sometimes paying more for the crowded steerage of a stinking unseaworthy boat than others pay for business-class gilded luxuries – and are frowned upon, and, if unlucky, arrested and promptly deported, when they arrive.

— Globalization by Zygmunt Bauman