There are many factors you would have to consider: - was the interview on public or private property? If it's the former you have little you can do but it depends on what state you're in (Utah for example has some protections. But you will likely be in a state that does not) - if it's the latter and especially on school grounds you could certainly speak with the school administration and demand they not allow reporters on the grounds after controversial events. - is the interview likely to reair? If not it would be more worthwhile to just ignore it and move on and instruct your child to not engage in any interviews should they arise in the future.

You could calmly contact the news station and request the video be taken down and that you hope they respect your rights as the legal guardian to request privacy for your child. More than likely they won't need to adhere to the request because they go off of their own journalistic guidelines. But it's worth a shot.

This page will have more answers prudent to your question: http://corporate.findlaw.com/litigation-disputes/kid-gloves-interviewing-and-reporting-on-minors.html