NPR's business news starts with a big investment in micro-blogging.
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MONTAGNE: The Saudi Arabian prince Alwaleed bin Talal is investing $300 million in Twitter. The man Time magazine calls the Arabian Warren Buffett says he looks to invest in, quote, "promising, high-growth businesses with a global impact," like Twitter.
New websites make it easier for people to share not just thoughts, but things like music, photos, favorite recipes and magazine clips. Linda Wertheimer talks to Sree Sreenivasan, digital media professor and dean of student affairs at Columbia Graduate School of Journalism, about notable social media tools that cropped up in 2011.
The Libyan government has given armed groups until Tuesday to disarm and depart from the capital. But the deadline is unlikely to be met. It's indicative of the wider problem in Libya where anyone with a uniform and a gun can say they are in charge.
The death of North Korean dictator Kim Jong Il has raised security concerns in the Korean peninsula and Asia in general. Linda Wertheimer talks to Stephen Bosworth, former U.S. special representative for North Korea and dean of The Fletcher School at Tufts University, about how dangerous the situation is on the Korean peninsula.