my name's christopher springate. a fascinating mix of issues again this week -- here's what we have for you. exorcism makes a controversial comeback in europe. in kosovo, blinding poverty is driving thousands to migrate. and in poland, the search intensifies for a hidden train full of gold. do you believe in exorcism -- the practice of driving out demons from people or places believed to be possessed by the devil? well, here in increasingly secular europe, most people don't. which explains why the practice has declined dramatically in recent decades. last june however, pope francis did something that reversed that trend -- he officially recognized the international association of exorcists. since then, demand has mushroomed for priests trained in the art of exorcism. in spain for instance, the church has doubled the number of its recognized practitioners. but psychiatrists there are attacking the move. they say people who claim to be possessed by the devil are probably suffering from mental illness. instead of an exo