But take a look at the Patriot Act. Much of it expired, but has been reauthorized time and time again -- with support from both parties, both Obama and Trump.
Yeah, that's tricky; people tend to adjust to things and they become the 'status quo'. I guess it's partially a matter of electing better politicians down the line.
But they definitely need as part and parcel of the implementation, a 'self destruct' that goes into effect once the crisis is over.