Policy challenges of the new diasporas: migrant networks and their impact on asylum flows and regimes

According to some estimates, roughly one in three of the 100 to 120 million people currently living outside their country of birth can be considered as refugees. In political terms, refugees and asylum seekers have arguably assumed an even greater significance, a development which derives from the growing perception that they represent a threat to national security and that they undermine the sovereign right of states to control the admission of foreign nationals onto their territory.