From NPR News, this is ALL THINGS CONSIDERED. I'm Audie Cornish. We begin this hour with President Obama on the campaign trail. He was in the battleground state of Ohio today, but he spent much of his time talking about China. President Obama even announced a new trade complaint against China during a campaign stop in Cincinnati.
For the past six years in a row, the World Bank has rated the Southeast Asian city-state of Singapore as the easiest place in the world to do business. Drawn in part by this reputation, money and talent are pouring into the island nation's growing technology sector.
One of Facebook's co-founders recently renounced his American citizenship and relocated to Singapore, where he has been investing in tech startups.
Anthropologists believe early humans evolved in Africa and then moved out from there in successive waves. However, what drove their migrations has been a matter of conjecture.
One new explanation is climate change.
Anthropologist Anders Erikkson of Cambridge University in England says the first few hardy humans who left Africa might've gone earlier but couldn't. Northeastern Africa — the only route to Asia and beyond — was literally a no man's land.
