These guys are already employed there. It is a change to previously-agreed working conditions.
Just remember that you’re supporting a ruling from the Ninth Circle-Jerk Court of Appeals for the United States.
IMO, JPL is validly a top level security institution. As such, I believe background checks are justified.
If someone had slipped through before, I would like to have that rectified now, before something bad happened.
So if you catch a spy working, you cannot fire him are put him in jail. I think I will call BS on your statement. Most all sensitive positions in the government that people sign wavers on say that the rules are subject to change.