Oh, do wake up Murray, no wonder you are still a security guard. Please explain to us how rigorous searching of crews would have helped in this case. In fact, explain how ANY searching of crews AT ALL would have prevented this.
When you have finished doing that, explain to us how the current measures will help, when a terrorist armed with a balpoint pen could easily kill people (or a plastic knife from a meal tray, or a piece of sharp trim removed from the aircraft, etc).
All the current measures do is make the public feel better. If you knew anything about security, you would understand all this...
The only sure way to prevent this in future is to either stop terrorists getting on aircraft (virtually impossible), or isolate the flight deck (much better idea).
Oh, and in future try reading those old threads before making assumptions about what I said.