美国政府关于什么人不能去古巴有这样一段话:The sanction "affects all U.S. citizens and permanent residents wherever they are located, all people and organizations physically in the United States, and all branches and subsidiaries of U.S. organizations throughout the world."
以上就是说,不光是美国公民,永久居留者,甚至所有身在美国的人(无论什么身份)都不得随便去古巴。如果去了,而且不幸被抓到,对非移民签证者,美国政府可能会取消他的签证,然后遣送回原住国,就是You're a visitor to the US on a visa. If they catch you and want to, they can revoke your visa and send you home, and you have no appeal.
所以我说,在政府没有明确放开限制之前,你们谁都不要冒险前往。