Here's a wrinkle I hadn't foreseen: take one huge tsunami, mix it with 20 year war of independence (still ongoing), and top it off with a now random sprinkling of cheap anti-personnel mines. Makes one bloody mess, serves several hundred thousand.
Read more here: http://news.bbc.co.uk/2/hi/south_asia/4172313.stm
Read more here: http://news.bbc.co.uk/2/hi/south_asia/4172313.stm