Guam, currently the world's largest sudd, may be on the edge of a precipice. According to Representative for Georgia's Fourth Congressional District, leading geotechnical engineer and ostensible follower of larithmics, Henry Johnson, the island and regnant U.S. territory, last seen floating off the coast of New Zealand, is in danger of capsizing. Johnson came to this conclusion after getting a rough estimate of the island's dimensions, density, and weight of the 8,000 or so marines being relocated from Okinawa Prefecture. Here he is explaining the theory:
http://www.youtube.com/watch?v=9GvxklVu1HY