steps oscar winning actress, cate blanchete, a good will ambassador for u.n. agency and giving a firsthand eyewitness account of the horrors she witnessed there. welcome to program. >> thank you. you've come back from this center of humanitarian crisis what was the most urgent need you are bringing back. i don't think anything could have prepared me for the precarious nature of the environment of the refugees. >> you are there with some of them in parts of the camp. >> as the the image suggests the thing that most struck me as i have never seen so many unaccompanied children. because over half the people in -- in the surrounding settlements, are children under the age of 18. >> what does that do to you, you are a mother of four children? >> yes. i met so many -- women who were, heads of households. so many children who didn't know where their parents were. it's, it its, deeply, deeply upsetting. i mean there, their lives are not only precarious because of of what they experienced in the oncoming monsoons but ripe for ex-ply tags. they don't have the family sup