Originally Posted by
MIT_SBM
Don't worry, Pre-Check will become all but required along with the associated fees. Slowly but surely the program will be expanded to cover all US airports. Subsequent to that there will be changes that will make not participating in Pre-Check [or whatever they decide to call it] the choice of last resort.
Except for those who are not US citizens and/or residents. There's no sign of opening Pre-Check to "foreigners". And no reason, really, why a non-US citizen going on a single vacation or business trip to the US should want to (or have to) pay fees for Pre-Check for one trip.