NOT a candidate diary

I've had a recent epiphany of sorts, related to 911 and the New Amerikan Mass Transportation™ rules and regulations.

All of the recent security related changes to our mass transportation systems (extensive pre-boarding times, same day ticketing restrictions, baggage restrictions, carry-on restrictions... well, the list goes on and on and ...) are the result of the damage done during the attacks in 2001.

All the extra personnel for security, all the added costs, all of that wasted time at the airport or train-bus depots, waiting, waiting, waiting..

To what end?  To deter the chance of another 911 ever happening again.

No weapons on board, so no way for passengers to overcome flight crew and take over the planes.

I know a much cheaper way to accomplish the same thing.

Discontinue all of the crazy pre-boarding regulations.  Use the extra security personnel to inspect EVERY single item that goes onboard.

Discontinue carry-on luggage, excepting clear plastic containers issued by the airline at the boarding gate.

Install permanent, solid-steel, framing partitions between the flight cabin and the passenger decks.

Install separate entryways for flight crew vs passengers and flight attendants.

Why wasn't this option ever considered, or did I miss that discussion?