What? Are you anti-business? :)
Interesting that this page touting Bt saftey (from the google cache from May 6th, 2001):
http://webcache.googleusercontent.com/search?q=cache:iIDmhiEwEVwJ:www.bt.ucsd.edu/bt_safety.html+bt+effects+on+human+health&cd=2&hl=en&ct=clnk&gl=us&source=www.google.com
Just went offline ...
http://www.bt.ucsd.edu/bt_safety.html