Map of scheduled airline traffic around the world in 2009, with 54,317 routes. Jpatokal/Wikimedia Commons.
Migration has emerged as perhaps the most prominent – and certainly challenging – issue for both the In and Out campaigns on British EU membership. The British prime minister David Cameron himself made it such, when he included it as a central demand in his renegotiation of Britain’s terms of membership. That he did so was surely political expedience: as YouGov polls confirm time and again, immigration is considered the most important problem facing the country right now. Indeed, greater control of borders and limiting benefits for migrants topped people’s wish list of changes to be negotiated by a wide margin.
