Well.
"Thank you for taking the time to contact us and we appreciate that you felt strongly enough to write to us again. We have noted your points and are sorry to learn you were not satisfied with our earlier response.
We are sorry to tell you that we have nothing to add to our previous reply. We do not believe your complaint has raised a significant issue of general importance that might justify further investigation. We will not therefore correspond further in response to additional points, or further comments or questions, made about this issue or our responses to it."
So there you go. The BBC do believe children can choose to be suicide bombers and that this issue is not important enough to be addressed further. In fact, they refuse to discuss it further, regardless of anyone else's opinions on the subject. Biased, inflammatory language, treating their audience like idiots- tough. Just going to ignore you. You can't make us respond to your actual points in any way!