And you know, and the troubling thing is that it's much easier to do something bad than to defend against all possible bad things, so the offensive uses really have an asymmetric advantage.
而且大家也知道，最头疼的事情是 干坏事情要比对所有坏事进行防御 要容易得多。 因此进行攻击的确是有一些“非对称”优势的。