the united nations says afghanistan is now on the brink of, quote, a humanitarian catastrophe. and 1 million afghan children are at risk of dying from hunger. while the country grapples with the aftermath of the chaotic u.s. exit, an historic drought and economic collapse. as cnn s anna coren reports, afghanistan is also bracing for a brutal winter ahead. we want to warn viewers some of the images in this story may be difficult to watch. reporter: a little girl sobs, gently rubbing her ears. in a fable attempt to ease the pain tormenting her body. she doesn t have the energy to cry the way other sick children do. camilla is exhausted.