The recent history of vice presidents has been one of picking assassin deterrents.

I can see in my minds eye dozens of would be killers with a Bush or Obama in their sights lowering their guns and walking away when they realized that their action would only put a Quayle or Cheney or Biden in the White House.

It is like the old joke about the two men running from the bear. One guy says, we can't outrun a bear. The other guy says, I just have to outrun you.

I know what you are all thinking "what about Al Gore?" Gore was TOO much like Clinton, except that he was less entertaining.