Definitely irrational. The problem is the security precautions make you feel safer. But you aren't. In fact, if I was a terrorist and I had the choice of attack

Definitely irrational. The problem is the security precautions make you feel safer. But you aren't. In fact, if I was a terrorist and I had the choice of attacking a "secure" airplane versus and unsecure airplane. I'd attack the secure plane every single time... It would spread more terror.