By the way, I should also make it clear that I think the act is an abomination even if it is only applied to noncitizens. There's nothing in the Bill of Rights or the Constitution's habeas corpus provision that actually mentions citizenship status, for one thing; for another, noncitizens in the US may not be able to vote but they still have to obey the laws and pay taxes, so I see no reason they should lack basic constitutional protections.