Parents: Do you want your children to know the bad things happening in "the real world"?

I'm 13 and have recently began to take an interest in current affairs. I look up the news, look up treatment of animals in slaughterhouses, and I look up the rate of suicide because of bullying. I know most 13 year olds are playing black ops instead of this, or on facebook, but I don't want to be ignorant of what's happening in the world. Do you want your children to be interested in these sort of things, or do you want them to keep their childhood innocence?