Satellites uncover North Korea By Adrian Brown BBC News North Korea is one of the most secretive states in the world. Its citizens cannot travel abroad and have little, if any contact with those who visit their country. The few tourists who do make it are carefully herded to a handful of destinations and rarely get off the beaten track. Yet, thanks to satellite imagery and the internet, North Korea's secretive world is gradually being unveiled. Here is a series of remarkable photographs showing aspects of North Korea's hidden world that are rarely seen by outsiders, as well as some...