The copyright status of each individual script is unknown, and probably unknowable. That being said, we're going with the Fair License anyway:
The Fair License
Copyright (c) 2015 _NSAKEY
Usage of the works is permitted provided that this instrument is retained with the works, so that any entity that uses the works is notified of this instrument.
DISCLAIMER: THE WORKS ARE WITHOUT WARRANTY.
Also: Don't sue me if you do something stupid.