He warns people not to assume that biological warfare is something far removed from their lives. It is very easy to release poison gas or germs, and very difficult to control them. A single bottle could create a catastrophe.
他說，不要以為生化細菌戰離我們很遠，施放毒氣或生化細菌既容易又很難被捉到，只要一個保特瓶就可釀成大災。