Amazon's founder buys the Washington Post. What's behind it?

The world of journalism is all abuzz with the purchase of the Washington Post by Amazon founder Jeff Bezos. The newspaper business is frantically searching for ways to stay profitable in the digital age. The Neiman Journalism Lab features this article about Bezos and his motivation for buying the Post. The author, Tim Carmody, is a technology journalist who says he has been preoccupied with Amazon all his adult life.