If Republicans were hoping Sarah Palin would lead them out of the wilderness, Carl Cameron just nuked that idea by revealing Palin didn't know Africa was a continent.

We're told that she didn't understand that Africa was a continent, rather than a country just in itself.

Even Shepard Smith was shocked and asked how on earth she could have gotten past the vetting process.

How could they end up with a running mate who doesn't know that Africa is a continent and they don't know the level of problems that they're getting themselves into in advance. I mean what happened with the vetting process?

Perhaps all Republican candidates should be required to take a basic test with questions like:

• Is the earth flat or round?
• Does the earth revolve around the sun or vice versa?
• What is the moon made of?
• Were there dinosaurs on Noah's Ark?
• Where do babies come from?