 She's a child protection advisor with Save the Children who has been in Gaza since May. Kat, welcome to Here and Now. Hi, good to be here. Kat, over 20,000 children unaccounted for is a staggering number. Where do you suspect they are? Of those 20,000 to 21,000 children, we estimate that around 17,000 are unaccompanied and separated from their families.