Shoppers and grocery stores both buying locally

Look for new placards at your grocery store that say “local.” More stores are catching on to food that’s made close to home. In part, it’s because of high oil prices, which make it harder to transport food, but it’s also due to the curiosity of Americans who want to know where their food comes from. It’s doesn’t matter why: Local farmers know a boon when they see it. Guest: Marian Burros, food writer for the New York Times