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 uu matalayay George Washington University law professor Jonathan Turley, ayaa ku andacoonaya inay goobjoog ahaayeen markii tiro badan oo kiimikooyin aan la garanayn lagu gubay godad furan iyo godad ku yaal Groom. Biopsies laga soo qaaday 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 sababtuna tahay shaqadooda Groom, taasina waxay gacan ka geysatay dhimashada Kasza iyo Frost.
Cilmi-baadhayaasha kiimikada ee Jaamacadda Rutgers