Sometimes, I wonder if some of you live in the real world! OK, Tuesday's events might have seemed like a bad Bruce Willis movie, but that's no need to advocate a Rambo response, people!
Let's look at the options.
1. Reinforced door
Nice idea - but what happens when the bad guys start killing cabin crew members and/or passengers, unless you open up? Are you going to have their lives on your conscience? Nope, didn't think so.
2. Arming pilots
One of the crazier ideas. First, how are you going to get access to your weapons sitting down - let alone having a decent firing stance? If the idea is that the flight deck crew would come out of the cockpit, guns blazing, what happens when they get drilled by the guy they didn't see?
3. Skymarshals aboard every flight
It's been done before, and looks like it's going to be done again. At least these people are professionals, and properly trained in the use of firearms on board aircraft. However, you're talking about a very significant cost which is going to be passed onto the airlines - and onto passengers - as well as the loss of two or more revenue seats.
And, for those who know what to look for - and believe me, 'organised' terrorists/hijackers know what to look for - Skymarshals stand out like a sore thumb and would be taken out first.
Remember, 'organised' terrorists/hijackers (as distinct from lone nutters) work in teams of a minimum of three - one of whom will not 'show' until the aircraft has been secured, in case a Skymarshal is on board.
There's no doubt that security needs to be tightened in the US. In Europe - especially post Lockerbie - security has generally been to a reasonable standard. Let's face it - if the US was a foreign country, the FAA would have given it Category 2 long ago - and it says a lot for the power of big business there that the FAA allows itself to be dictated to not just on safety issues but also maintenance by major airlines. That has to stop.
There's no doubt that the US airline industry has to change beyond recognition after Tuesday's events. Costs will be very much higher, and air travel will no longer be as convenient - resulting in many passengers no longer flying. This will put a number of airlines out of business; certainly stringent cost reduction programmes will be introduced to pay for all of the additional security measures so you can expect substantial pay and/or job cuts.
At the end of the day, though, the risks of a hijack - or a repeat of Tuesday's events - are minimal for any given crew/aircraft. And it's always going to be a case of if someone is determined enough then he's going to get through any security shield.
As the IRA said post Brighton: "We only have to be lucky once. You have to be lucky all the time."