Splitting the atom, going to the moon, eradicting smallpox entirely - <b>nobody gets smallpox anymore</b> because we completely destroyed it. The only smallpox left on Earth is in a couple of labs in the US and Russia. How cool is that? We're working on the same for Polio, and we're damned close to destroying that entirely as well.
That's not true. Everybody that deploys to combat in the middle east gets a smallpox shot. I had one in 2004. It's a horrible shot to get too.

Edit: I bolded the most important part.