Proposed federal legislation that would ban all forms of human cloning would cripple research in America and force researchers to find countries where such studies are legal, Zavos said.

• 说这话的帕纳椰提斯米切尔扎瓦斯是肯塔基州的一名生殖研究员，也是人类克隆的鼓吹者，周五，他说，已有3000多对渴望成为父母的不育夫妇与他的组织接触。