Panorama's Hilary Andersson travelled to Whitney Elementary School in Las Vegas to meet some of America's youngest poor.
Children told of going to bed hungry and worrying about their families, while school officials said some children were resorting to eating "ketchup soup".
Panorama: Poor America, 成人论坛 One, Monday, 13 February at 20:30 GMT then available in the UK on the
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