It is obvious that DHS and all others must obey the law. It is important to note that the people affected here are not just the hijab wearing sharia loving Muslims (as trump might describe them) but also people who helped US army carry out the unnecessary operations in their homeland and as a result face danger in their own country. Some top notch researchers or even activists who are fighting the oppressive regimes…
Clearly this was never about terrorism. It's about cynically assigning blame to countries who have no means to fight back ie. a Trump hotel or military purchasing power.