The number of people who leave their countries to work abroad is soaring, according to the United Nations. More than 200 million people now live outside their country of origin, up from 150 million a decade ago.
And migration isn't just from poor countries to rich countries anymore. There also is significant migration from rich country to rich country — and even from poor country to poor.
Beginning Thursday, the U.N. will hold a high-level meeting on the subject in New York.
In a call center in Rancho Cordova, Calif., on Tuesday, all the workers wore the same T-shirt: "Keep Calm And Go Live."
They were ready and waiting to take calls from consumers who could buy health insurance on California's new insurance marketplace for the first time. So the T-shirts urged calm, but the mood was ecstatic and emotional among the architects and key backers who gathered to flip the switch on the Golden State's exchange.