stockpiles of ivory, worth millions of dollars, and most people assume that if that happens this could increase the terrible case of poaching across the african continent which has decimated the herds over the past few years. >> what a story. thanks for bringing that to us, david mckenzie, live in jo ha johannesburg. the faa has been working with beta version of the software that could be linked two two deadly crashes. the agency's acting administrator acknowledged his team had questions when boeing announced a software fix last week. he chalks it up to routine business. >> boeing gives us information, we review it, we give it back with more things we need or when they don't get it exactly right, and we're talking about hundreds of pages of technical data on a software update that they're doing. it's very normal for there to be a back and forth.