Locust invasion could have 'serious effect on food security' in East Africa: experts The current locust invasion in East Africa poses a serious threat to food security and livelihoods, the Climate Prediction and Applications Centre (ICPAC) says at a press conference in Nairobi. Experts say the phenomenon is the result of extreme climate swings and could prove catastrophic for a region still reeling from drought and deadly floods. IMAGES AND SOUNDBITES