Kids can be terrorists. Kids can be brainwashed. We have "gang members" here who are still in elementary school committing acts of violence with and without weapons. Why is it so far-fetched to assume that a "child" of 14 or 15 could be absolutely convinced that anybody out of alignment with their world view must die? This kid was kidnapped, but if he hadn't been capture when he was it is very likely that his kidnapping would have led to indoctrination and further resource for Al Queda or any other jihadist group seeking to nullify us or anybody else they dislike.
Also, not sure why anybody is surprised by what Wikileaks has produced. I've heard most of this before via the MSM.