Tonga: New Zealand brings water desalination plant

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Help has arrived for the Islands of Tonga in the form of two New Zealand navy ships which have landed with food and drinking water - we'll hear from the military officer coordinating the aid and from a disabled man who was caught up in the tsunami and forced to swim more than 24 hours. Britain's foreign secretary has warned Russia of a terrible loss of life if it invades Ukraine - we'll hear the Russian perspective on what is going on there. And scientists say a crop found only in Ethiopia - called the false banana - could feed millions of people and boost food supplies as the climate warms.