Entering the Ka'aba

You know, I've seen a few people online expressing anger, over the fact that non Muslims are not allowed to enter the Kaaba because of this, you know, the scandal with this Israeli reporter. And I think I have a suggestion for the Saudis, what they can do to maybe make it more easy to understand for non Muslims around the world about why they can't enter. They should just put a big sign out in front of the Kaaba that says employees only.