Here's another challenge for traditional retailers. Companies like Amazon and eBay now offer apps for your Smartphone that take a lot of the legwork out of comparison-shopping. While you're in a store, just take a picture of an item or scan the barcode on the box. You'll find out where else to get it and you might even get an extra discount for buying it on the spot.
Stephen Hoch teaches marketing at the Wharton School of Business and consults for some retailers.
Mitt Romney was also in Iowa today. His campaign has spent the past several days on the offensive against Newt Gingrich. As Iowa Public Radio's Kate Wells reports, the former Massachusetts governor is facing a bigger challenge than he planned.
KATE WELLS, BYLINE: Remember when Mitt Romney wasn't supposed to really need Iowa?
The U.S. has poured $28 billion of economic assistance into Egypt in recent decades. But now when Egypt's needs are the greatest, the U.S. and Europe are cash strapped. The Obama administration is trying to quickly reprogram aid to make sure it helps bolster democratic forces in the country and creates jobs to help ease the country's transition. The International Monetary Fund's chief Christine Lagarde says her door is open as well, but countries like Egypt need to ask for aid, which does come with some conditions. Meanwhile, leading members of Congress say the U.S.
At the E.U. summit in Brussels, Britain was the only nation to rule out treaty changes aimed at saving eurozone countries from default and saving the euro. A look at what's behind Britain's latest show of euro skepticism — and what it means for the Tory Prime Minister David Cameron, who, ironically, is in a coalition with the pro-Europe Liberal Democratic party.
The case of a former FBI agent who disappeared from an Iranian resort island nearly five years ago has come back into the headlines. His family has decided to tell the media, for the first time, about some developments in the case that occurred last year — including a video of the former agent, Robert Levinson, who is shown asking the government to work for his release. NPR's Dina Temple-Raston talks to Lynn Neary about the questions surrounding the case and the family's efforts to bring Levinson home.