[fedora007]

It is irrational because you're scared due to recent events. You're proving OP's point.

You can't apply reason and logic to his going to Mecca, and arrive at a conclusion that he may come in to work with an AK-47.

[jmnicolas]

It would be irrational to be scared of him just because he's a Muslim. For the record I have several other Muslim colleagues that are absolutely not worrying me.

I don't find it irrational to be scared of someone that shows signs of radicalization.