In 1994, shan qandaraasleyaal rayid ah oo aan la magacaabin iyo carmallada qandaraasleyaasha Walter Kasza iyo Robert Frost ayaa dacweeyay USAF iyo Hay'adda Ilaalinta Deegaanka ee Mareykanka. Dacwadooda, oo ay matalayeen borofisarkii sharciga ee Jaamacadda George Washington Jonathan Turley, waxay ku andacoodeen inay goobjoog ka ahaayeen markii tiro badan oo kiimikooyin aan la aqoon ah lagu gubay godad furan iyo godad ku yaal Groom. Baayoopsiyadii laga soo qaatay cabashooyinka waxaa falanqeeyay biochemists-ka Jaamacadda Rutgers, kuwaas oo helay heerar sare oo ah dioxin, dibenzofuran, iyo trichloroethylene dufankooda. Cabashooyinku waxay sheegeen inay la kulmeen dhaawacyo maqaarka, beerka, iyo neef-mareenka ah shaqadooda darteed Groom, taasina waxay gacan ka geysatay dhimashada Kasza iyo Frost.
Jonathan Turley oo ah macalin cilmiga sharciga ka dhiga Jaamacadda George Washington