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Now Playing: 02-15-12 Marketplace

"Linsanity" is everywhere. What is the economic impact of Jeremy Lin off the court? Kellogg's is buying Pringles from Procter & Gamble for $2.7 billion. Lawmakers agree to extend benefits for the long-term unemployed, but commentator Betsey Stevenson says more unemployment assistance is merely a band-aid. Kai Ryssdal talks to David Wolman, author of "The End of Money," about why getting rid of physical cash makes economic sense.