(1) Whether his department has conducted any research into the negative effects of the pesticide dichlorodiphenyltrichloroethane (DDT); if not, (a) why not and (b) when will such research be conducted; if so, (i) when was the research conducted, (ii) by whom and (iii) what were the findings; (2) whether his department has studied any other research into DDT conducted by people outside his department; if so, (a) who conducted the research, (b) when was it conducted and (c) what were the findings of the research; (3) whether his department (a) accepted or (b) rejected the findings of the research conducted by people outside his department; if so, (i) on what basis were the findings (aa) accepted or (bb) rejected in each case and (ii) who in his department made the decision to accept or reject the findings of the research in each case?