NBAC将要求克林顿总统禁止使用联邦资金克隆人的90天禁令无限期地延长，并且还可能要求将之立法。但是，NBAC成员们计划在建议的措辞上更为严谨，以避免给克隆人体DNA或细胞等研究带来更多地限制——因为这是分子生物研究中的常规课题。但是，专家组尚未就一个关键问题达成一致，即是否建议立法把将私人资金用于克隆人的行为视为犯罪。

　　在5月17日会议上讨论的建议序言草案中，夏皮罗表示，专家组已取得广泛的共识，认为“试图利用成人细胞核去克隆婴儿将是违背道德伦理的”。夏皮罗解释说在与会期间，道德上的疑虑主要源于对孩子健康带来危害的担忧。随后，专家组非正式地接受了几点共识，尽管有些细节尚无定论。

　　NBAC计划呼吁继续禁止使用联邦政府基金资助任何利用人体细胞核去克隆婴儿的企图。因为现行的联邦法律已经禁止使用联邦基金克隆研究用的胚胎(即人类后代出生前的最早阶段)或有意识地危及胚胎的生命，NBAC在胚胎研究这一问题上保持沉默。

　　NBAC的成员明确表示，他们呼吁由私人资助的研究人员和机构不要试图通过人体细胞核转移技术去克隆人。但他们在是否进一步要求联邦立法强令彻底禁止克隆人这一问题上存在分歧。夏皮罗和大多数委员赞成将此立法，但夏皮罗在电话采访中透露这一议题仍“悬而未决”。

　　Passage 5

　　Science, in practice, depends far less on the experiments it prepares than on the preparedness of the minds of the men who watch the experiments. Sir Isaac Newton supposedly discovered gravity through the fall of an apple. Apples had been falling in many places for centuries and thousands of people had seen them fall. But Newton for years had been curious about the cause of the orbital motion of the moon and planets. What kept them in place? Why didn’t they fall out of the sky? The fact that the apple fell down toward the earth and not up into the tree answered the question he had been asking himself about those lager fruits of the heavens, the moon and the planets.

　　How many men would have considered the possibility of an apple falling up into the tree? Newton did because he was not trying to predict anything. He was just wondering. His mind was ready for the unpredictable. Unpredictability is part of the essential nature of research. If you don’t have unpredictable things, you don’t have research. Scientists tend to forget this when writing their cut and dried reports for the technical journals, but history is filled with examples of it.

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