What’s billed as the nation’s largest annual wine and grape industry trade show opens today in Sacramento.Thousands of grape growers and wine makers from around the world will be meeting for the Unified Wine and Grape Symposium. Ken Freeze is with the conference. He says the wine industry has fared relatively well during the recession. "One of the things that we've seen is that while people may during a recession, may not buy that $50 bottle of wine, they're still going to by that $20 bottle of wine or maybe that $10 bottle of wine."