Pit down, I can say in my airline there a several layers to ensure the correct people are on the flight deck. Having said this, I suppose anything is possible.
So now we have another game changer. If this is some form of terrorist attack, nod the law makers come up with the idea that everyone on the flight deck has to be confirmed who they are, then who confirms the confirmation? And who confirms that the confirmer is confirmed to confirm?
We have a complete melt down in air travel, and the other side has finally won.
While we are on the subject, who is checking those that check for our yogurts? And who checks them?
This thing could result in the complete shut down of all flights, world wide, unless sensible heads prevail.