Firstly, I do totally agree with the statement that uncontrolled accesses to the internet for children could pontentially lead to danger. In my opinion, online trouble children faced mostly is cyberbullying, I had listened to one of the story about a girl that had been bullied through the internet and ended up herself commiting suicide. It was utterly tragic, and hopefully doesn't happen more from now on. Moreover, some sensitive contents such as violation, sex and addictions must be filtered closely from children since these things could usher kids to imitate these behaviors in real life. In order to prevent these issues, supervision is essential, especially by thier parents or teachers who could indicate and suggest children about the contents they should and should not enjoy within their ages. In addition, advising them some knowledgable or creative contents to children in order to assist them to explore topics that they could interest might be a fantastic solution as well.