Nukes

[Randallw]

Just because something is bad for you doesn't mean it isn't also in a way of benefit. A prime example I can think of is oxygen. Yes we breathe oxygen, we need it to live, but oxygen is also corrosive. You can see what oxidation does to metal. Well Oxygen is also slowly poisoning the cells in your body. That's why they wear out and we die.

[Shadowstar]

You know, disease-ridden lifeforms may be a scourge on humanity, but they do a pretty decent job of protecting our planet from invading aliens too.

[Dizzy]

haha