South Texas New World Screwworm has risen to nearly two dozen

One month after the first infestation was detected on a ranch in South Texas, the number of New World Screwworm cases has risen to nearly two dozen. The same pest cost the Texas cattle industry hundreds of millions of dollars in 1970s before it was eventually brought under control. For more, KCBS Radio News Anchor Steve Scott spoke with ABC News Correspondent Jim Ryan Getty Images / nickalbi