Children's Commissioner Dame Rachel de Souza has described the situation as an "unacceptable failure". Most of those who went missing are now 18 and over. File pic Forty people who went missing from asylum seeker hotels as children years ago have still not been found. All but two of them are now adults, parliament's Joint Committee on Human Rights said in a new report. England's Children's Commissioner Dame Rachel de Souza has described their ongoing disappearance as an "unac