Can an Ivory Sale Ban in California Stop Elephant Poaching?

It has been against the law to sell ivory or any elephant parts for that matter in California since 1977 -- and nationwide since 1990. But federal and state laws still allow the sale of older ivory imported before those dates. Now conservationists are trying to close this loophole that's creating an appetite for ivory in California. They say it's part of the reason why poachers are killing nearly a hundred African elephants every day.