Me either, and I got tired of constantly posting and reposting the same darned information over and over to disprove those wacko theories. Some people just WANT the sky to fall.
It's actually that people find it more comforting that disease outbreaks be bioterror instead of nature acting more or less randomly, believe it or not.
The idea that we're going to see deadly diseases randomly spring up and accidentally get transported to this country is more frightening than the idea that someone would deliberately engineer and deliver a disease; the former seems more "controllable" and you can solve the problem and make everything right by just finding or punishing the bad guys.