VERY little content for kids here. CNN just slaps a disclaimer on the front so you're on your own. In the three weeks that I've been previewing the episodes (incredibly, this is part of my child's 6th grade "geography" curriculum), I've seen graphic footage of: Syrian Civil War, Nairobi Mall massacre, Navy Yard shooting, 9-11, bullying-induced suicide, etc.
What isn't violent is often political, essentially teaching kids that US government doesn't work and that our country is run by angry, disenfranchised and accusatory children.
Yes, there are some worthwhile stories but they are few and sandwiched between killings, suicide and war.
In summary: It's not for me and certainly not for my child.