The above is absolutely correct. Security measures are in place right now to placate the public and allow the leadership of the government to have some plausible deniability in the event of another attack.
I have a buddy who used to be a baggage handler in college. Not long after 9-11, he was traveling with his dad, and no longer worked for the airlines, but still knew his way around Dulles in DC. He told me about taking his dad (a professional security consultant) around security and doing so not even having an employee badge anymore.
And given the recent pilot who posted a video to youtube pretty much showing the same thing, nothing has changed in the past 10 years regarding employee checkpoints, or lack thereof.