11:05World Have Your SayWHYS 30: Why are we obsessed with the end of the world?BBC World Service Duration: 25 minutes Fri 21st Dec 2012, 11:05 on BBC World Service OnlineAvailable for over a yearListen nowHundreds of people are preparing for what they believe will be the apocalypse today. But Mayans in Mexico are saying it's the start of a new dawn, not the end.GenresNewsBrandWorld Have Your Say Source: BBC Online