In fact, it pretty much proves that Pre should be the norm instead of exception.
You don't just pay money and get a pass. There's a significant background check involved which, I suspect, does more to enhance security than some millimeter wave scanner in the security line.
No, there isn't.
I walked into the interview booth on a whim one day, when my flight arrived early. They were booked solid, but someone had missed their time, so they slotted me in. My "extensive" background check was completed and KTN issued in less than 24 hours. They may run some sort of cursory criminal records check, but any such check is automated and too fast to be called "extensive."
Edit: I should add that I do not have (and have never had) any sort of security clearance, but people who do tell me that the process for the lowest level of "real" security clearance takes many months and costs many thousands of dollars.
The Nexus program in Canada, for example, involves among other things an extensive interview and background check by the opposing country (for example, as a Canadian, the US performs my check).
There is no way any background check was involved for this.
For better or worse, the TSA is also applying a policy where, to address slow security lines, they're allowing folks to get waved through Pre.
In principle this is random, and therefore has the same effect on security as not patting down every passenger.
Assuming it actually worked that way.
Initially there were two large groups of people who got Pre. One group was people who were already enrolled in another trusted-traveller program like NEXUS or Global Entry (I have Pre courtesy of Global Entry, for example), presumably because they'd already been through background checks -- potentially more rigorous ones than Pre strictly required -- and thus were deemed a useful and trustworthy pilot group. The other group was people in the upper tiers of frequent-flier programs, who again were deemed useful and trustworthy (anybody who clears security as often as the top-tier FFs do is either trustworthy or a complete systemic failure of security).
After running that for a while, they started up another avenue into Pre, called "Managed Inclusion". This was advertised as a test of real-time capabilities to assess who does and who doesn't need more rigorous screening, but from a cynical perspective was really just a way to expose casual travelers to the fact that Pre exists and give them a taste of it. Managed Inclusion is why you see random Joe and Jane Traveler told to go to the Pre lane; it's not a consistent status/membership like the other trusted-traveller programs, it's just a thing that does or doesn't happen sometimes when they check in and get a boarding pass.
As an aside: Managed Inclusion has significantly reduced the usefulness of Pre, because people who end up in it have been conditioned to do the typical process (remove stuff from bags, take off shoes/belts/etc.), and don't get the fact that, when their boarding pass has the Pre logo, they don't have to do that. Which eats up more time as they get lectured by a TSA person, repack their stuff, put their shoes back on, and so on.
And now you can just enroll directly in Pre by paying the application fee and getting background checked (though why anyone would, when NEXUS or GE are more useful and come with Pre as a side effect, I don't know). So the frequent-flier-status enrollment is being wound down, Managed Inclusion keeps going as a way to expose the general public to the idea, and that's where we are today.
Managed Inclusion is akin to Movie Preview in hotels back in the day...
I stand by my statement that Pre should be the norm not the exception. Make Global Entry the premium tier, that's fine but Pre needs to be the new norm.
I grant you, though, it sounds like Pre is far less rigorous of a check than NEXUS or Global Entry. But a check is still involved.
But GE involves CBP going through employment/address history as well as every time your passport's been used and any issues you've ever had at a border (I know because I heard a guy at the next desk being grilled in his interview about a piece of fruit in his luggage when I was in my interview). And NEXUS involves having both the US and Canada run checks on you independently.
So in terms of rigor, NEXUS > Global Entry > Pre seems to be the way it goes.
My mother didn't apply for it, nor did she pay for it. If it costs money to get, why would the airline give it to her? It's not because she's "high status" as she doesn't have an appreciable number of miles.
The machine looks something like this http://ww3.hdnux.com/photos/01/64/47/477654/3/628x471.jpg
If there were a way to pay money I definitely would though just to get it every time guaranteed. Where should I send the ckeck?
You pay $85, and the government basically does a background check on you. If you pass the background check, you are in TSA Pre-check.
It is not something different, but I think some airlines do automatically sign some of their clients up for pre-check, particularly if those clients have status. E.g., United Airline's pre-check information page discusses people who have opted-in through their frequent-flier program:
https://www.united.com/web/en-US/content/travel/airport/tsa-...
My Global Entry enrollment "interview" consisted of "Put your hand on the scanner. Now look at the camera. OK, you'll get your Known Traveler Number in an email later today, and a card you can keep with you in the mail in about a week."
The CBP people who do GE generally seem to be on a whole different level of efficiency and understanding-actual-security compared to the average TSA blueshirt at the airport.
If you are going to down vote, at least say why (other than zzalpha's pointless assertion)
FWIW, if people are going to sign up for Pre/Gobal Entry/Nexus, it's the best bang for the buck to sign up for Nexus at $50 and included GE/Pre benefits. The only drawback is that you need to get to a Canadian border for the interview.