217 Today: Ranchers may have to relearn how to fight an old enemy — the New World screwworm

217 Today: Ranchers may have to relearn how to fight an old enemy — the New World screwworm

In today’s deep dive, a parasite has cattle ranchers worried. New World Screwworms were pushed south of the U.S. border for decades but they’re on their way back. Ranchers recall what it was like to fight screwworms and the efforts they’d like to see to keep them out of the U.S.