Since the research had been funded by the U.S. federal government through the National Institutes of Health (NIH), the matter was taken up by the United States Congress, where it was aggressively pursued by, among others, Representative John Dingell.
この研究は国立衛生研究所(NIH)を通じて米国連邦政府から資金提供を受けていたため、この問題は米国議会で取り上げられ、特にジョン・ディンゲル（英語版）下院議員が積極的に追求した。