I don't think it's quite the same as your analogy.
The reason we have to go through scanners and take off our shoes and get groped is because once upon a time, some bad actors got through security with contraband. We then decided we just had to spend millions upon millions of dollars, train thousands of people, and inconvenience and embarrass millions of passengers because if we didn't, more bad actors would get through with said contraband using the same methods.
So we closed a security hole. Except that same security hold is opened up again if enough travelers inundate the airport. Not just one security hole, but almost all of them. The entire purpose of the TSA. Conclusion - if you want to get contraband through security, just wait for the right day and the TSA will let you walk right through.
The reason we have to go through scanners and take off our shoes and get groped is because once upon a time, some bad actors got through security with contraband. We then decided we just had to spend millions upon millions of dollars, train thousands of people, and inconvenience and embarrass millions of passengers because if we didn't, more bad actors would get through with said contraband using the same methods.
So we closed a security hole. Except that same security hold is opened up again if enough travelers inundate the airport. Not just one security hole, but almost all of them. The entire purpose of the TSA. Conclusion - if you want to get contraband through security, just wait for the right day and the TSA will let you walk right through.