Reuters Pictures
New Singapore citizen Yu Xue Lian (L) waits in a line to receive her citizenship certificate with others during a national citizenship ceremony in Singapore August 18, 2007. Singapore's government is so worried about the low birth rate and greying population that it is turning to immigrants to add another two million people to the island of 4.5 million over the next 40 to 50 years. Many countries -- such as Spain, Ireland and United Arab Emirates -- rely on immigration to boost a shrinking labor force. But Singapore's immigration plan is unique because it would boost the population by nearly 50 percent, to the point where those born in Singapore would barely form a majority in their own country.