Italy's Volcanoes - A Powder Keg

Everything that is humanly possible has been explored, investigated and recorded by mankind. But there is still one area about which we know as good as nothing for certain: the inside of our planet is «terra incognita». No man has ever penetrated the earth's inner core and seen with his own eyes what takes place there. But how dangerous are volcanoes really?

 Scientists are unanimous about one thing: the region around Naples - home to around 1.5 million people - is among the most dangerous volcanic areas in the world. The people in and around Naples are sitting on a number of gigantic powder kegs. Which is why researchers are daring to undertake a risky experiment - drilling directly into the heart of the fire chamber.