
Even as economic and military walls have come down in the post-Cold War era, states have rapidly built new barriers to prevent a perceived invasion of 'undesirables.' Nowhere is this more dramatically evident than along the geographic fault lines dividing rich from poor countries:...

Even as economic and military walls have come down in the post-Cold War era, states have rapidly built new barriers to prevent a perceived invasion of 'undesirables.' Nowhere is this more dramatically evident than along the geographic fault lines dividing rich from poor countries:...