I would love to work for NASA so much even at a significant pay cut, but almost everything I've read in the past was they still do drug screenings for a lot of positions I was interested in. Maybe someday they will pull their heads out of the dark ages.
Frankly, drug screenings for employees can only benefit NASA given the kind of work they do.
Normally I would agree but I get it with regards to NASA. They do life and death stuff that has like zero margin of error. They probably shouldn't be in the business of hiring people who's edible might be lasting longer than they expected.