And now to the spreading influence of apps and tablets in the business world. As NPR's Sonari Glinton reports, many small businesses are using tablets to replace everything from the menu to the timecard to the cash register.
UNIDENTIFIED WOMAN: That is ceroni, so the green is like a pistachio.
Christmas tree growers are frustrated that politics are delaying a marketing campaign to promote real trees over artificial. Following four years of work to get it passed, the U.S. Department of Agriculture approved the industry-sponsored real Christmas tree campaign in November. But conservatives quickly branded it as "President Obama's Christmas tree tax" and the program was delayed within days of its approval. There are 18 other commodities — like pork and eggs — with similar generic advertising programs. They show anywhere from a two-to-one to a ten-to-one return on investment.
As North Korea mourns the death of its leader Kim Jong Il, both South Korea and China have reacted to the risk of instability on their borders. The South Korean military has been placed on alert, and there are reports that the Chinese have closed their border with North Korea. Robert Siegel talks to NPR's Louisa Lim, who is watching events from the South Korean capital, Seoul.