it's not kids that go out and shoot people down, suicide bomb, but young adults. It's simply not good enough to turn off the computer if your kids watch stuff they shouldn't. Fact is most parents do not monitor kids internet activity, because the parents enjoy their 'my time' moments. Kids and adults are constantly seeking information, that's why the internet is thriving. It would not hurt to put some restriction on the internet, unless you've got some dark secrets are fetishes you'd like to share with us all?
