Got the name wrong, oops!

Best pizza ever.

Of the other side of the coin, I can kill someone with a knife. Should I not know how to make a knife or any other sharp object because it is lethal? How exactly am I going to use those nuclear launch codes? If the security code leaked in the first place, then the system is flawed. Its not about the information someone has, it's what they do with it that makes them a "bad guy."