Chemical and biological attacks are scary and will kill a lot of people but don't rise to the level of nuclear.
“Organizations endure, however, in proportion to the breadth of the morality by which they are governed. Thus the endurance of organization depends upon the quality of leadership; and that quality derives from the breadth of the morality upon which it rests.”
“Everybody who runs a Web site knows we're not assured of compatibility, and we could end up with a split.”