In the E.U., internal borders have been made transparent to promote the free flow of commerce. Its external borders, however, are another matter. This program surveys the high-tech methods being used to secure the E.U.’s borders against refugees and asylum-seekers alike while speaking with human smugglers, who both assist and exploit their clients; illegal immigrants, who see Europe as their only safe haven; and European bureaucrats, who in the absence of an overarching E.U. policy feel compelled to keep as many immigrants out of "Fortress Europe" as possible, to please their increasingly anti-immigrant electorates. (60 minutes)