DHS also said that "at the earliest possible time, the Department of Justice intends to file an emergency stay of this order and defend the President's Executive Order, which is lawful and appropriate. The Order is intended to protect the homeland and the American people, and the President has no higher duty and responsibility than to do so."
http://www.zerohedge.com/news/2017-02-04/dhs-stops-implementing-key-parts-trumps-immigration-order-visa-revocation-reversed