Could you please post where you get this 'factual data.' How do you know what has increased airliner security?
I can state fact that pilfering
MY (or any other pilot's) small tools and toiletries have not increased security one bit, since I have taken over an airplane, after being screened, just about every time I've been to work (even without my eyeglass screwdriver) since 1988!
If an attempt to take over an airliner is foiled, you will never hear about it.
Post your "factual data" proving this statement.

IMHO, they will shout it from the rooftops if it ever happens.
The TSA has a thankless job and we will only hear about their mistakes.
I don't blame the tsA workers at the airport for doing their jobs, as they don't make the idiotic policies, they just enforce them.
We allowed this nonsense to begin back in '88, after PSA 1771. It was an eyewash show then, and still is now. They are less concerned with increased security than they are with the
appearance of increased "security".
As long as entry level employees are coming through the back door unchecked, there is little reason to send pilots through passenger screening.
P.S. There are only 2 reasons why a "Richard Fits Well" and neither of them are good.......
