, this is bob scully, and welcome to another edition of the world show, our hidden angels series, as in hidden angel foundationthe foundation we've told you about that we're working with at the moment on a special documentary devoted to special needs children and multi-sensory environments. well, multi-sensory environments didn't just drop out of the sky; they were thought through by two very brilliant gentlemen you're about to meet--two dutchmen, ad verheul and jan hulsegge-- who, 35 years ago, were working in holland in the hartenberg center. and they were working almost as anyone else did at that time with special needs children--in total ignorance of their special needs. special needs children at that time were so baffling to most medical professionals, they were left to rot away in nooks and crannies of hospitals. nobody knew what to do, and people thought that was what you should do--nothing. but they realized that personalities lay dormant inside those children. human beings were there that could come out and would come out if only you gave them the chance, and the chance came through sensory stimulatio