NPR News

Unemployment dropped in December 2011, but can Americans still count on moving up? Recent reports say America now lags behind Canada, Britain and some Western European nations in terms of economic mobility. Host Michel Martin talks with public policy analyst John Bridgeland and Brookings Institution economic expert Isabel Sawhill.

Three Kings Day is when the three wise men are believed to have visited the baby Jesus. Many cultures, especially in Latin America and the Caribbean, are celebrating on Friday. Festivities are also going strong in East Harlem, Miami, Los Angeles, even Disneyland. Host Michel Martin speaks with Gonzalo Casals, who organizes a parade in East Harlem.

You may want to read this twice if you're older than 45. In fact, you may have to.

That's because your mental abilities are already in decline, according to a study of 7,390 British civil servants just published in BMJ, the British Medical Journal.