This picture taken on October 15, 2011 s

This picture taken on October 15, 2011 shows the top of the roof of a house submerged in severe flooding in the Lop Buri Province, north of Bangkok. Thousands of sandbags piled alongside a canal on the northern edge of Bangkok form the last line of defence between the city of 12 million people and a wall of floodwater bearing down on the capital. AFP PHOTO/ Nicolas ASFOURI (Photo credit should read NICOLAS ASFOURI/AFP/Getty Images)