Tackling locust swarms across Horn of Africa

This time last year, swarms of desert locusts began spreading across countries in the Horn of Africa, devastating crops and people's livelihoods. An emergency campaign of the United Nations Food and Agriculture Organisation, FAO appealed for urgent action to avoid a desert locust plague and a looming humanitarian crisis. Speaking to Charlotta Lomas, FAO' s senior locust forecasting officer, Keith Cressman reflects on efforts to tackle the swarms.