Wake up and smell the coffee guys.
The Ws of MD that we are concerned about are the Biologicals.
We are living in the JET AGE. These nasty little fiends can be spread around the entire world within 48 hours by half a dozen nut-jobs with death wishes.
Diseases like Smallpox, Anthrax, and that oldie but goodie, Pnuemonic Plague, or how about a good dose of enhanced Influenza?
Worries the crap outta me, and if old Dubya wants to go whack the guy who's most likely to actually do this sort of thing, he can borrow my aluminum bat.