I still don't understand SCOTUS' logic on this case. They took up the case and allowed the revised ban to go through, knowing that by the time they heard the case, it would have expired, and thus would have to be dismissed since it no longer had the force of law. How does this make any sense, given that it amounted to an effective approval of the policy prior to hearing either position's case in court? What about the lower courts' rulings made it tenable, even unanimously so among the justices, to justify this tacit approval? I know the changes they made to the ban, requiring the US to allow in people with family connections beyond parents/children, were somewhat significant, but not hearing the case at all still rubs me the wrong way. I recognize that the Trump admin made a case that such a time limited ban was necessary for purposes of national security, but it seems questionable at best to accept that argument, allow the policy to go through with some changes, and then dismiss the case before formal hearings even began. Not setting any kind of legal precedent is troubling too, just setting the stage for many more trials that will inevitably make their way to SCOTUS. How long can they kick the can down the road on this issue before actually hearing a case and making a ruling on it?