'Horror houses' shed light on care crisis for Nigerian addicts Substance abuse in Africa's most populous country has been described as an "epidemic" by the United Nations but there is almost no proper treatment available for those trying to recover. The grim problem has come to light after a string of raids on so-called rehabilitation centres where hundreds of inmates, mainly men and boys, have been found chained and abused in atrocious conditions. A VOICED AFPTV REPORT N°1MD1TH