An estimated 2,000 children live on Romania's streets, many of them taking refuge in tunnels that run under the capital city Bucharest and form part of a network carrying hot water pipes. There is no natural light - just a few candles on the walls. As well as the health hazards that go with the territory ie tuberculosis, scabies and Aids the other risks arise from 'sex tourists' involved in child prostitution and pornography. Of the institutionalised children a few, of course, remain in state or charitable care. Some are mentally or physically disabled, but it is difficult to know what others would have been like if they had not had such a horrific upbringing.