East Africa faces dual threats of COVID-19 and locust swarms

As COVID-19 threatens the people of East Africa, locusts threaten their livestock and their food. The region suffered an initial swarm of the destructive insects in February but is now ravaged by a second wave 20 times larger. Pesticides can help, but pandemic border closures complicate delivery. And the populations directly affected are already vulnerable and food insecure. Nick Schifrin reports.