According to reports, John Reid is planning on introducing a Government Kitemark for software that is designed to protect children online. Currently there are many different applications out there which can be used to monitor usage of computers. Key stroke loggers, port blocking software, pixel blocking software, web browser locking etc, and the one's that the Government deems are good will carry a Kitemark symbol to let parents know they are good.
The problem is that this is like a sticking plaster masking the issue. People will see this Kitemark and falsely assume that their children are now safe. You can just see it now, little Johnny has been groomed and abused by someone online, and his parents go on the news and say "we bought a Government Kitemark product and it didn't work".
Frankly this policy, besides being clearly driven by headlines (you can't beat a good "Government crack down on Net pervs!" story in the tabloids), will not actually protect children. In fact, it is dangerous because it will lull parents into a false sense of security. This kind of software is only as good as the person that administers it, and, as technology changes, many will become obsolete very quickly. Many parents though will not be aware of such things because they "have a Kitemark product, so everything is OK".