They are also banned in checked baggage. So that means that TSA might open every piece of baggage that has the profile of a Note 7 (which is similar to many others). And, presumably, they will remove any Note 7 which they find. This will probably be upsetting to people who don't have proper backup (or who need their Note 7 to return in exchange for something else). And what about the people who don't even have a Note 7 but get their device mistakenly taken. At least at the checkpoints people will have the option: a) to show that it isn't a Note 7; b) to decide not to fly until they can find a way to get their device home by an alternative means.