'I want to be a doctor when I grow up' Ethiopian girl on Trocaire box

Henry Mckean meets Mahlet Ali in Ethiopia, the girl on this year's Trocaire box

Today is Ash Wednesday and is the start of lent. In the first of a 3 part series I travel to Ethiopia to look at the challenging work Trocaire do. This week I meet the girl on this year's Trocaire box. Mahlet Ali is 13 and is the top of her class in school. Trocaire are helping Ali and her family by building an irrigation system making it easier to farm with less and less rain. I travel to Northern Ethiopia with cameraman Luke Benson.