In the aftermath of Japan's devastating earthquake and tsunami, Alastair Leithead considers what it takes to survive in the shattered coastal villages in the north of the country. David Willis finds out just how easy it is to get armed in California. Nick Caistor reveals the extent of Cuba's bureaucracy. Hannah Barnes travels to Jerusalem and talks to lovers of Hebrew who are fighting to ensure it keeps up with a changing world. And in northern Pakistan, Mohammad Hanif is touched by the miseries of a rare snow leopard in captivity.