We take oranges, grapefruit, lemons and limes for granted. They've been around our entire lives. They're always there when we want 'em. But did you have any idea that in just a few years they may all be gone? There's a lethal disease called citrus greening decimating Florida citrus. In the 20 years since it arrived, Florida has lost half its citrus land ? some 500,000 acres of groves. Farmers are nothing if not ingenious. And adaptable. Some have found better ways to protect their fruit. Others have expanded into producing other commodities ? like blueberries and peaches. We'll also take a side trip to Port Everglades, FL to try to do a little detective work as to how the bug that brought greening to America arrived ? and to show the pivotal role our ports play in keeping us all fed.