"Based on German prototypes, green walls and roofs are a natural idea in Singapore's tropical environ..." — Alan Huffman

Historically, war journalists have embedded themselves with one side, which means the greatest threat comes from the clearly delineated enemy of that side.

Poor laborers from all parts of Asia as well as Africa, the Americas and even Europe are transported by plane each day to wealthier nations where low-tier jobs are plentiful; sometimes the travelers board without even knowing their final destination.

Like so much in Singapore, admission to the Marina Bay's casino is hierarchical: Free for anyone with an international passport, costly for locals, off-limits to migrant workers altogether.

Aside from its parks and nature areas, Singapore is intensively developed, and due to the shortage of land, is building up, down and on manmade islands and landfills.