看美国ICE官员是怎样回答你的疑问的:
"It's not illegal to come to the US and have your baby born here as a US citizen, but it's illegal to lie about that during the visa application process and when you are applying for permission to the United States."
错在签证欺诈。这次牵涉到月子中心和中国孕妇的签证欺诈被揭露主要是美国的HSI部门派了线人去中国卧底全程搜证,看来逮了个正着。详情:
www.latimes.com/local/lanow/la-me-ln-birth-tourism-schemes-raids-20150303-story.html#page=1