If pilots are the one group that can bypass security screening, the bad guys will know this and we will become the way in.
It's fairly straightforward: you get a phone call on your way to work, telling you that your family is being held and will come to serious harm very soon unless you comply.
They don't tell you to crash your own aircraft. Instead, they want you to pick up a package, deliver it airside, and go about your business.
If we're searched like passengers, this loophole is closed and the problem never arises.
It's so nice to read someone who understands the threats for once.