Well, you know, if they could background check all passengers, security might cease to be a necessity. What would it take, altogether, to insure everyone taking a plane was as thoroughly checked as a federal employee. I know something about that. I work in a bank with business with the IRS. We all have to get "clearance" to log into IRS computers in one of our centes. You wouldnt BELIEVE what the IRS wants to know about you if you access one of their computers. I assume top CIA clearance is more, so I don't EVEN want to get that clearance!
Soooo, what I'm saying is that if every passenger were to be that transparent to the government with essentially no privacy or secrets, we could do away with TSA.
So anyone want to predict when that day will dawn? Unless TSA is as sloppy with hiring and vetting employees as some private security companies I know, then one TSO handing a bottle to another, doesn't seem that risky.
(Regarding sloppiness at private security companies, I used to work in another bank building. The night guards were hired by a known private security firm. One night, a female lawyer with an office in the building was abducted and raped by an employee of this private security company. I remember thinking at the time "These guys are in the security business! Don't they find out anything about the people they put in charge of the safety of the building?")