Big Stories, Briefly Explained...

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In this Aug. 7, 2007 file photo, Hewlett-Packard employees work at the company's Business Process Outsourcing center in Bangalore, India. Low cost efficiency put India's outsourcing companies at the heart of global business and created a multibillion dollar industry that for years has skated over criticism it was eliminating white collar jobs in rich nations. Now, the industry's long-held fears of a backlash are being realized in its crucial U.S. market. Provisions in an overhaul of U.S. immigration law will close loopholes that allow outsourcing companies, Indian and American, to pay guest workers in the U.S. at rates often below wages for equivalent-level Americans. (AP Photo/Aijaz Rahi, file)

Outsourcers could earn lower profits

In this Wednesday, Feb. 6, 2013, photo, workers install a roof on a home under construction in Charlotte, N.C Confidence among U.S. homebuilders slipped this month from the 6� year high it reached in January. Many builders reported less traffic by prospective customers before the critical spring home-buying season. (AP Photo/Chuck Burton)

US housing permits at 4 ½-year high

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Facebook CEO Mark Zuckerberg speaks at Facebook headquarters in Menlo Park, Calif., Thursday, March 7, 2013. Zuckerberg on Thursday unveiled a new look for the social network's News Feed, the place where its 1 billion users congregate to see what's happening with their friends, family and favorite businesses.(AP Photo/Jeff Chiu)

Facebook reshuffles its News Feed

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Russ Fox, a letter carrier for the U.S. Postal Service, prepares to deliver mail in Wichita, Kan., Wednesday, Feb. 6, 2013. The U.S. Postal Service will stop delivering mail on Saturdays but continue to deliver packages six days a week under a plan aimed at saving about $2 billion annually, the financially struggling agency says. (AP Photo/The Wichita Eagle, Brian Corn)

World's postal services struggle

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A man casts his vote for the Italian Senate, in Piacenza, Italy, Sunday, Feb. 24, 2013. Italy votes in a watershed parliamentary election Sunday and Monday that could shape the future of one of Europe's biggest economies. (AP Photo/Marco Vasini)

Italy faces political gridlock

This image provided by Microsoft shows the company's new version of its Office software. The software became available to consumers as an online subscription service for the first time in an attempt to extend one of the company�s key franchises beyond personal computers on Tuesday, Jan. 29, 2013. (AP Photo/Microsoft)

New era dawns for Microsoft's Office