Citrus growers in Florida have lost millions of dollars in crops because of two destructive plant diseases. But as Judith Smelser reports, the proposed cure could wipe out half of the state's citrus nurseries.
As millions prepare for Earth Day observances Saturday, Brian Watt talks to an inventor looking to cure the world's addiction to plastic shopping bags.
Federal officials have made it clear that they plan to crack down on businesses that employ undocumented immigrants. But will businesses really change their ways? Alex Cohen reports.
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